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

1 Answer
Dec 4, 2015

x^2 + 16x + 64

Explanation:

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

(a+b)^2=a^2 + 2ab +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,

(x+8)^2 = x^2 + 16x + 64.