Question

Given f(x) = 2x² + 8x - 4 and g(x) = 5x +6, find 3f(x) – 2g(x).

Answer 1

Step-by-step explanation:

When the problem says 3f(x), it means that you are multiplying f(x) by 3. The same goes for 2g(x).

$3(2x^2+8x-4)= 6x^2+24x-12$

$2(5x+6) = 10x+12$

Now, we subtract f(x) from g(x) after being multiplied.

$(6x^2+24x-12)-(10x+12)$

$6x^2+14x-24$