Multiplying polynomials

Multiplying polynomials is easy enough, but it can get a bit messy. Especially when dealing with a few variables. But if you know what you are doing, you will manage quite nicely. So let us get down to business.

There is a simple logic behind multiplying polynomials – just multiply every term in the first polynomial with every term of the second polynomial. After that, just tidy up the remaining terms by performing the necessary mathematical operations, such as addition and subtraction. Apart from that, all other rules for multiplication and the order of operations still apply and they should be observed.

Example 1.

So, if you have a polynomial like this:

(4m + 3) * (3m – 2m)

…the first thing you should do is to multiply the terms from the first polynomial with each term in the second one. The process looks like this:

4m*3m + 4m *(-2m) + 3*3m + 3*(-2m)

12m2 – 8m2 + 9m – 6m

After a bit of tidying up, it should look like this:

4m2 + 3m

And that is it. That is the process of multiplying polynomials. It is easy, right? Now we are going to solve a bit more complicated example to show you how to deal with the clutter that appears in these cases.

Example 2.

Let us assume that we have to simplify the product of these polynomials.

(-a + 3b) * (-a2 + ab + 3b2)

Again, we have to start by multiplying each term from the first polynomial with the terms in the second one.

(-a)*(-a2) + (-a)*ab + (-a)*3b2 + 3b2*(-a2) + 3b*ab + 3b*3b2

a3 – a2b – 3ab2 – 3a2b + 3ab2 + 9b3

Now it is time to perform the addition and subtraction to get this mathematical expression in order. Keep in mind that these operations can only be performed with terms whose variables are exactly the same. We will rewrite this expression in a way that these variables are next to each other. So, we get something like this:

a3 – a2b – 3a2b – 3ab2 + 3ab2 + 9b3

We can leave out the two terms that have the same value, but opposite signs since their sum is 0. That means the result of our simplification is:

a3 – 4a2b + 9b3

As you can see, even the most complicated examples are not that difficult to solve as viagra safe. However, a considerable amount of concentration is required because mistakes can happen pretty easily. When you deal with multiplying polynomials, be sure to check your calculations before going further with an assignment. It is worth the extra effort.

So, this is all there is to multiplying polynomials. They can get more complicated by adding more variables or extra polynomials, but if you follow these basic rules and focus on your calculations, you can solve them all. If you wish to practice multiplying polynomials, feel free to use the worksheets below.

Multiplying polynomials exams for teachers

Exam Name File Size Downloads Upload date
Single variable – Integers
Multiplication of polynomials – Integers with a single variable – very easy 557.8 kB 4915 September 3, 2019
Multiplication of polynomials – Integers with a single variable – easy 556.4 kB 3462 September 3, 2019
Multiplication of polynomials – Integers with a single variable – medium 580.7 kB 4874 September 3, 2019
Multiplication of polynomials – Integers with a single variable – hard 567.1 kB 4212 September 3, 2019
Multiplication of polynomials – Integers with a single variable – very hard 589.3 kB 4684 September 3, 2019
Single variable – Decimals
Multiplication of polynomials – Decimals with a single variable – very easy 570.4 kB 2103 September 3, 2019
Multiplication of polynomials – Decimals with a single variable – easy 573.5 kB 1886 September 3, 2019
Multiplication of polynomials – Decimals with a single variable – medium 610.6 kB 2254 September 3, 2019
Multiplication of polynomials – Decimals with a single variable – hard 600.3 kB 2085 September 3, 2019
Multiplication of polynomials – Decimals with a single variable – very hard 642.1 kB 2068 September 3, 2019
Single variable – Fractions
Multiplication of polynomials – Fractions with a single variable – very easy 579.5 kB 2376 September 3, 2019
Multiplication of polynomials – Fractions with a single variable – easy 587.8 kB 2234 September 3, 2019
Multiplication of polynomials – Fractions with a single variable – medium 626.1 kB 2186 September 3, 2019
Multiplication of polynomials – Fractions with a single variable – hard 633.1 kB 2279 September 3, 2019
Multiplication of polynomials – Fractions with a single variable – very hard 680.5 kB 2028 September 3, 2019
Two variables – Integers
Multiplication of polynomials – Integers with two variables – very easy 560 kB 3107 September 3, 2019
Multiplication of polynomials – Integers with two variables – easy 559.8 kB 2495 September 3, 2019
Multiplication of polynomials – Integers with two variables – medium 593.7 kB 3472 September 3, 2019
Multiplication of polynomials – Integers with two variables – hard 583.5 kB 2901 September 3, 2019
Multiplication of polynomials – Integers with two variables – very hard 618.7 kB 2929 September 3, 2019
Two variables – Decimals
Multiplication of polynomials – Decimals with two variables – very easy 582.8 kB 1990 September 3, 2019
Multiplication of polynomials – Decimals with two variables – easy 581 kB 2038 September 3, 2019
Multiplication of polynomials – Decimals with two variables – medium 625.3 kB 1741 September 3, 2019
Multiplication of polynomials – Decimals with two variables – hard 624.3 kB 2249 September 3, 2019
Multiplication of polynomials – Decimals with two variables – very hard 670.5 kB 2011 September 3, 2019
Two variables – Fractions
Multiplication of polynomials – Fractions with two variables – very easy 591 kB 1962 September 3, 2019
Multiplication of polynomials – Fractions with two variables – easy 599.3 kB 1711 September 3, 2019
Multiplication of polynomials – Fractions with two variables – medium 643.3 kB 1896 September 3, 2019
Multiplication of polynomials – Fractions with two variables – hard 640.9 kB 1870 September 3, 2019
Multiplication of polynomials – Fractions with two variables – very hard 689.5 kB 2285 September 3, 2019

Multiplying polynomials worksheets for students

Worksheet Name File Size Downloads Upload date
Single variable – Integers
Integers – Simplify product of monomials and binomials 140.3 kB 3975 September 3, 2019
Integers – Simplify product of monomials and trinomials 199.7 kB 3085 September 3, 2019
Integers – Simplify product of binomials 176.1 kB 4566 September 3, 2019
Integers – Simplify product of binomials and trinomials 260.4 kB 4144 September 3, 2019
Single variable – Decimals
Decimals – Simplify product of monomials and binomials 148.8 kB 2138 September 3, 2019
Decimals – Simplify product of monomials and trinomials 213.1 kB 2037 September 3, 2019
Decimals – Simplify product of binomials 188.2 kB 2122 September 3, 2019
Decimals – Simplify product of binomials and trinomials 275.5 kB 1909 September 3, 2019
Single variable – Fractions
Fractions – Simplify product of monomials and binomials 274.9 kB 2054 September 3, 2019
Fractions – Simplify product of monomials and trinomials 397.9 kB 1817 September 3, 2019
Fractions – Simplify product of binomials 372.3 kB 2162 September 3, 2019
Fractions – Simplify product of binomials and trinomials 2.2 MB 2041 September 3, 2019
Two variables – Integers
Integers – Simplify product of monomials and binomials 167.8 kB 4205 September 3, 2019
Integers – Simplify product of monomials and trinomials 257.7 kB 4575 September 3, 2019
Integers – Simplify product of binomials 241 kB 5779 September 3, 2019
Integers – Simplify product of binomials and trinomials 327.8 kB 6264 September 3, 2019
Single variable – Decimals
Decimals – Simplify product of monomials and binomials 179.2 kB 2022 September 3, 2019
Decimals – Simplify product of monomials and trinomials 269.3 kB 2080 September 3, 2019
Decimals – Simplify product of binomials 252.8 kB 1994 September 3, 2019
Decimals – Simplify product of binomials and trinomials 346.3 kB 1669 September 3, 2019
Single variable – Fractions
Fractions – Simplify product of monomials and binomials 337.2 kB 2093 September 3, 2019
Fractions – Simplify product of monomials and trinomials 483.9 kB 2057 September 3, 2019
Fractions – Simplify product of binomials 446 kB 2026 September 3, 2019
Fractions – Simplify product of binomials and trinomials 817.7 kB 2139 September 3, 2019