38.5k views
2 votes
G(x) = 2x² + 18x - 14

g(3x)

(I know you plug in (3x) for any x in the equation, but I need to see the steps because I'm still messing something up )

User Jyshin
by
6.9k points

1 Answer

3 votes

So firstly, plug in 3x into the x variable:
g(3x)=2*(3x)^2+18*3x-14

Next, solve the exponent:
g(3x)=2*9x^2+18*3x-14

Lastly, solve the multiplications and your answer will be:
g(3x)=18x^2+54x-14

User AndyMM
by
7.8k points