Question

Which expression was factored completely using the GCF, if the original expression was

16x² + 8x?

4(4x²+2x)
4x(4x+2)
8(2x²+x)
8x(2x+1)

Answer 1

It's D

Explanation:

`1. \: gcf = 8x \\ 2. \: 8x( \frac{16x {}^(2) }{8x} + (8x)/(8x) ) \\ 3. \: 8x(2x + 1)`