Question

Let f(x) = 3x2 – x + 2 and g(x) = 5x2 – 1. Find f(g(x)). Show each step of your work.

Answer 1

ok can u plz show what u have tried already?

Answer 2

f(x) = 3x^2 -x+2--------(1)
g(x) = 5x2-1----------(2)

f(g(x) = f[ 5x2-1] [ from(2) g(x) = 5x2-1]

Answer 3

is it clear

Answer 4

sorry i didnt show a pic

Answer 5

yes I undertsand

Answer 6

in equation (1)
replace x with 5x2 -1 and simplify it

Answer 7

f(5x2-1) =3[5x2-1]^2 -[5x2-1] +2
simplify it

Answer 8

3(5x-1^2-1)^2-x+2

Answer 9

nvm okay

Answer 10

can u simplify

Answer 11

yeah

Answer 12

75x^4-35x^2+6

Answer 13

?

Answer 14

@FLVSKidd do you can writing your calculi step by step here please ?

Answer 15

like (5x^2 -1)^2 = ?

Answer 16

so there you have wrote ,,show each step of your work" - so than make it please

Answer 17

ok.
(5x^2 -1)^2 = 25x^4 -10x^2 +1
- so this is the first step ,can you continuing please ?

Answer 18

did I calculate right? dayakar

Answer 19

@dayakar

Answer 20

plz , wait

Answer 21

75x^4-35x^2+6

yes - this is right sure,
-- but you not have wrote here step by step

Answer 22

yes, corrct

Answer 23

hope so much that you understand it now what is the way to calculi like exercise

yes ,

Answer 24

@FLVSKidd .CORRECT