If f(x) = 2x^2 + 1 and g(x) = x2 – 7, find (f + g)(x). 4x^2+1/2x-1 4x^2+3/2x-1 6x^2-7 4x^2+3/2x-7

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

f(x) = 2x² + 1, g(x) = x² - 7.

Substitute:

(f + g)(x) = (2x² + 1) + (x² - 7) = (2x² + x²) + (1 - 7) = 3x² - 6

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.