Question

Find the product of (x + 7)2.

x2 − 14x + 49
x2 + 14x + 49
x2 − 49
x2 + 49

Answer 1

x2+14x+49 Answer B is the correct answer

Answer 2

(x+7)^2=x^2+2*7x+7^2=x^2+14x+49

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