Ademolaomowa12 Ademolaomowa12

04-09-2020
Mathematics

contestada

Express your answer as a polynomial in standard form.
f(x) = x + 7
g(x) = x2 + 2x
1
Find: g(f(x))

Respuesta :

jimrgrant1 jimrgrant1

04-09-2020

Answer:

x² + 16x + 64

Step-by-step explanation:

To find f(g(x)) , substitute x = g(x) into f(x), that is

f(x + 7)

= (x + 7)² + 2(x + 7) + 1 ← expand (x + 7)² using FOIL

= x² + 14x + 49 + 2x + 14 + 1 ← collect like terms

= x² + 16x + 64

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