Answer:
(A) 6x³+8x² + 4x - 4, but only if my change is correct to <u>6x³5x² - 2</u> is correct.
Step-by-step explanation:
<u>Is "g(x) = 6x³5x² - 2" meant to be g(x) = 6x³-5x² - 2?</u>
<u>If so,</u> (f+g)(x) = 3x² + 4x - 6 - (6x³-5x² - 2)
(f+g)(x) = 3x² + 4x - 6 - 6x³+5x² + 2
(f+g)(x) = 6x³+8x² + 4x - 4
(A)
3b+2(b-1) = 8
3b+2b-2 = 8
5b = 8+2
5b = 10
b = 2
