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 )

Respuesta :

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

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

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