Question

If B=3x-1 and C=2x^2+x+9, find an expression that equals 2B+2C in standard form.

Answer 1

Answer:

$4x^2 +8x + 16$

Step-by-step explanation:

2 (3x - 1) + 2 (2x^2 + x + 9)

6x - 2 + 4x^2 +2x + 18

4x^2 + 8x +16