Question

f(x)=-x + 2
g(x)=-4x^2+ x + 5
Find (fog)(x)

Answer 1

@jim_thompson5910 whats fog?

Answer 2

same as fg(x)

Answer 3

o

Answer 4

so first i'd do
-4(-x+2)^2+(-x+2)+5

Answer 5

substiitute g(x) for the x in f(x) and simplify

Answer 6

ok so my final answer would be
-4x^2+15x-9

Answer 7

actually i would do
-(-4x^2+x+5)+2

Answer 8

and my final answer would be
4x^2-x-3

Answer 9

right?

Answer 10

Can you please check this? last one! @kirbykirby @jim_thompson5910

Answer 11

@cwrw238

Answer 12

hello?

Answer 13

someone hook a girl up?!?!?!?!

Answer 14

yes the last answer you gave is good

Answer 15

( f o g )(x) = f(g(x))


f(x) = -x + 2

f(g(x)) = -(g(x)) + 2

f(g(x)) = -(-4x^2+ x + 5) + 2

simplify

Answer 16

thank you all!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 17

so you got it, the final answer is 4x^2-x-3 (just saw you posted that), so nice work

Answer 18

ty!!!!!!!!!!!!!!!!!!!!!!!