Multiply the polynomials using the special product formulas. (x+y)(x-y)

Multiply the polynomials using the special product formulas.
(x+y)(x-y)
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Step 1
To multiply: (x+y)(x-y)
Solution:
We know,
$\left({a}^{2}-{b}^{2}\right)=\left(a+b\right)\left(a-b\right)$
$⇒\left(x+y\right)\left(x-y\right)={x}^{2}-{y}^{2}$
Step 2
Result:
$\left(x+y\right)\left(x-y\right)={x}^{2}-{y}^{2}$