Question

Multiply.
(4x + 7)^2

a. 16x^2 + 49
b. 16x^2 + 28x + 49
c. 16x^2 + 56x + 49
d. 8x^2 + 14

Answer 1

\(\bf (4x + 7)^2 \implies (4x + 7)(4x + 7)\)

Answer 2

is it d?

Answer 3

multiply the 2 binomials, and match up your answer with the choices

Answer 4

b

Answer 5

After you expand it to (4x + 7)(4x + 7), use the FOIL method. First, Outside, Inside, Last. 4x times 4x = 16x^2. Outside and inside are both 4x * 7 or 28x (each or 56x), then the last is 7*7 or 49. 16x^2 + 56x +49. It cannot be reduced, so this is the answer . . . . . letter C