Question

for f(x)=2x+1 and g(x)=x^2-7, find (f-g)(x)
a. -x^2+2x-6
b. x^2-2x-8
c.8+2x-x^2
d. 2x^2-15

Answer 1

this is your job:
\[(2x+1)-(x^2+7)\]

Answer 2

-2x^3-14x-x^2-7... i feel like its wrong

Answer 3

no this is not times

Answer 4

it is minus

Answer 5

i thought i had to foil. X^2+2x-6?

Answer 6

still not right. should be
\[-x^2\] not
\[x^2\] for the first term yes?