Teagensmith Teagensmith
  • 23-10-2018
  • Mathematics
contestada

let
[tex]f(x) = {x}^{2} + x + 2[/tex]
and
[tex]g(x) = 2 {x}^{2} + 5[/tex]
Find f(g(x))

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BasketballEinstein
BasketballEinstein BasketballEinstein
  • 28-10-2018

Whatever is inside parentheses first [g(x)], is what you would evaluate first, then after that, you would substitute that answer into the f(x) function for EVERY "X" YOU SEE:

[2x² + 5]² + [2x² + 5] + 2

[2x² + 5]² + [2x² + 7]↓

This is your final answer. You get it?

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