Question

Which of the following represents "the square of the sum of a number and 4 is 36"?

Answer 1

x2 + 42 = 36 x2 + 4 = 36 (x + 4)2 = 36

Answer 2

It's "the square of THE SUM", so you're adding things together, then squaring the result. So it's (x+4)^2 = 36.