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 0 B 2774 January 1, 1970
Multiplication of polynomials – Integers with a single variable – easy 0 B 1909 January 1, 1970
Multiplication of polynomials – Integers with a single variable – medium 0 B 2756 January 1, 1970
Multiplication of polynomials – Integers with a single variable – hard 0 B 2314 January 1, 1970
Multiplication of polynomials – Integers with a single variable – very hard 0 B 2778 January 1, 1970
Single variable – Decimals
Multiplication of polynomials – Decimals with a single variable – very easy 0 B 1158 January 1, 1970
Multiplication of polynomials – Decimals with a single variable – easy 0 B 1016 January 1, 1970
Multiplication of polynomials – Decimals with a single variable – medium 0 B 1107 January 1, 1970
Multiplication of polynomials – Decimals with a single variable – hard 0 B 1068 January 1, 1970
Multiplication of polynomials – Decimals with a single variable – very hard 0 B 1055 January 1, 1970
Single variable – Fractions
Multiplication of polynomials – Fractions with a single variable – very easy 0 B 1153 January 1, 1970
Multiplication of polynomials – Fractions with a single variable – easy 0 B 1095 January 1, 1970
Multiplication of polynomials – Fractions with a single variable – medium 0 B 1093 January 1, 1970
Multiplication of polynomials – Fractions with a single variable – hard 0 B 1114 January 1, 1970
Multiplication of polynomials – Fractions with a single variable – very hard 0 B 1043 January 1, 1970
Two variables – Integers
Multiplication of polynomials – Integers with two variables – very easy 0 B 1680 January 1, 1970
Multiplication of polynomials – Integers with two variables – easy 0 B 1394 January 1, 1970
Multiplication of polynomials – Integers with two variables – medium 0 B 1959 January 1, 1970
Multiplication of polynomials – Integers with two variables – hard 0 B 1678 January 1, 1970
Multiplication of polynomials – Integers with two variables – very hard 0 B 1747 January 1, 1970
Two variables – Decimals
Multiplication of polynomials – Decimals with two variables – very easy 0 B 912 January 1, 1970
Multiplication of polynomials – Decimals with two variables – easy 0 B 972 January 1, 1970
Multiplication of polynomials – Decimals with two variables – medium 0 B 873 January 1, 1970
Multiplication of polynomials – Decimals with two variables – hard 0 B 1301 January 1, 1970
Multiplication of polynomials – Decimals with two variables – very hard 0 B 1055 January 1, 1970
Two variables – Fractions
Multiplication of polynomials – Fractions with two variables – very easy 0 B 991 January 1, 1970
Multiplication of polynomials – Fractions with two variables – easy 0 B 913 January 1, 1970
Multiplication of polynomials – Fractions with two variables – medium 0 B 929 January 1, 1970
Multiplication of polynomials – Fractions with two variables – hard 0 B 1034 January 1, 1970
Multiplication of polynomials – Fractions with two variables – very hard 0 B 1084 January 1, 1970


Multiplying polynomials worksheets for students

Worksheet Name File Size Downloads Upload date
Single variable – Integers
Integers – Simplify product of monomials and binomials 0 B 2166 January 1, 1970
Integers – Simplify product of monomials and trinomials 0 B 1581 January 1, 1970
Integers – Simplify product of binomials 0 B 2621 January 1, 1970
Integers – Simplify product of binomials and trinomials 0 B 2534 January 1, 1970
Single variable – Decimals
Decimals – Simplify product of monomials and binomials 0 B 1045 January 1, 1970
Decimals – Simplify product of monomials and trinomials 0 B 1067 January 1, 1970
Decimals – Simplify product of binomials 0 B 1032 January 1, 1970
Decimals – Simplify product of binomials and trinomials 0 B 969 January 1, 1970
Single variable – Fractions
Fractions – Simplify product of monomials and binomials 0 B 988 January 1, 1970
Fractions – Simplify product of monomials and trinomials 0 B 860 January 1, 1970
Fractions – Simplify product of binomials 0 B 1107 January 1, 1970
Fractions – Simplify product of binomials and trinomials 0 B 1035 January 1, 1970
Two variables – Integers
Integers – Simplify product of monomials and binomials 0 B 2562 January 1, 1970
Integers – Simplify product of monomials and trinomials 0 B 2604 January 1, 1970
Integers – Simplify product of binomials 0 B 4082 January 1, 1970
Integers – Simplify product of binomials and trinomials 0 B 4017 January 1, 1970
Single variable – Decimals
Decimals – Simplify product of monomials and binomials 0 B 1050 January 1, 1970
Decimals – Simplify product of monomials and trinomials 0 B 1214 January 1, 1970
Decimals – Simplify product of binomials 0 B 1088 January 1, 1970
Decimals – Simplify product of binomials and trinomials 0 B 964 January 1, 1970
Single variable – Fractions
Fractions – Simplify product of monomials and binomials 0 B 1183 January 1, 1970
Fractions – Simplify product of monomials and trinomials 0 B 1163 January 1, 1970
Fractions – Simplify product of binomials 0 B 1020 January 1, 1970
Fractions – Simplify product of binomials and trinomials 0 B 1113 January 1, 1970