Question

Question 4

Simplify the expression: (7x + 2)²
A 49x² + 4
B 49x² + 28x + 4
C 49x² - 4
D 25x² + 9

Answer 1

B

Explanation:

(7x+2)(7x+2)

7x×7x=49

7x×2+2×7x=28x

2x2=4