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Multiplying Polynomials Calculator

Multiply polynomials step by step

The calculator will multiply two polynomials (quadratic, binomial, trinomial, etc.), with steps shown.

First polynomial:

Second polynomial:

If the calculator did not compute something or you have identified an error, or you have a suggestion/feedback, please write it in the comments below.

Solution

Your input: multiply $$$2 x^{2} - 4 x + 2$$$ by $$$2 x^{2} - 4 x + 2$$$.

To multiply polynomials, multiply each term of the first polynomial by every term of the second polynomial. Then simplify the products and add them. Finally, simplify further if possible.

So, perform the first step:

$$$\left(\color{Crimson}{2 x^{2}}\color{BlueViolet}{- 4 x}+\color{DarkCyan}{2}\right) \cdot \left(\color{OrangeRed}{2 x^{2}}\color{Blue}{- 4 x}+\color{Chartreuse}{2}\right)=$$$

$$$=\left(\color{Crimson}{2 x^{2}}\right)\cdot \left(\color{OrangeRed}{2 x^{2}}\right)+\left(\color{Crimson}{2 x^{2}}\right)\cdot \left(\color{Blue}{- 4 x}\right)+\left(\color{Crimson}{2 x^{2}}\right)\cdot \left(\color{Chartreuse}{2}\right)+$$$

$$$+\left(\color{BlueViolet}{- 4 x}\right)\cdot \left(\color{OrangeRed}{2 x^{2}}\right)+\left(\color{BlueViolet}{- 4 x}\right)\cdot \left(\color{Blue}{- 4 x}\right)+\left(\color{BlueViolet}{- 4 x}\right)\cdot \left(\color{Chartreuse}{2}\right)+$$$

$$$+\left(\color{DarkCyan}{2}\right)\cdot \left(\color{OrangeRed}{2 x^{2}}\right)+\left(\color{DarkCyan}{2}\right)\cdot \left(\color{Blue}{- 4 x}\right)+\left(\color{DarkCyan}{2}\right)\cdot \left(\color{Chartreuse}{2}\right)=$$$

Simplify the products:

$$$=4 x^{4}- 8 x^{3}+4 x^{2}+$$$

$$$- 8 x^{3}+16 x^{2}- 8 x+$$$

$$$+4 x^{2}- 8 x+4=$$$

Simplify further:

$$$=4 x^{4} - 16 x^{3} + 24 x^{2} - 16 x + 4$$$

Answer: $$$\left(2 x^{2} - 4 x + 2\right)\cdot \left(2 x^{2} - 4 x + 2\right)=4 x^{4} - 16 x^{3} + 24 x^{2} - 16 x + 4$$$.