# How do you multiply (x + 8)^2?

Dec 4, 2015

${x}^{2} + 16 x + 64$

#### Explanation:

You can use the formula for the square of a binomial:

${\left(a + b\right)}^{2} = {a}^{2} + 2 a b + {b}^{2}$

So, the square of a sum consists in the square of the first term, plus the square of the second, plus twice the product of the two terms. In your case,

${\left(x + 8\right)}^{2} = {x}^{2} + 16 x + 64$.