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Factor by difference of squares Calculator

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1

Example

$\frac{\left(1-x^2\right)^2}{x^2+2x+1}$
2

The trinomial $\frac{\left(1-x^2\right)^2}{1+2x+x^2}$ is perfect square, because it's discriminant is equal to zero

$\Delta=b^2-4ac=2^2-4\left(1\right)\left(1\right) = 0$
3

Using the perfect square trinomial formula

$a^2+2ab+b^2=(a+b)^2,\:where\:a=\sqrt{x^2}\:and\:b=\sqrt{1}$
4

Factoring the perfect square trinomial

$\frac{\left(1-x^2\right)^2}{\left(1+x\right)^{2}}$
5

Rewrite the difference of squares $\left(1-x^2\right)$ as the product of two conjugated binomials

$\frac{\left(\left(1-x\right)\left(x+1\right)\right)^2}{\left(1+x\right)^{2}}$
6

The power of a product is equal to the product of it's factors raised to the same power

$\frac{\left(1-x\right)^2\left(x+1\right)^2}{\left(1+x\right)^{2}}$
7

Simplifying the fraction by $\left(1+x\right)^{2}$

$\left(1-x\right)^2$