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sergij07 [2.7K]
3 years ago
15

9. Given f(x) = 7x2 and g(x) = x +1, find f(g(x)). SHOW ALL WORK.

Mathematics
2 answers:
Nezavi [6.7K]3 years ago
8 0

I hope this helps you

f(g(x)) =f(x+1)=7(x+1)^2

f(x+1)=7.(x^2+2x+1)

f(x+1)=7x^2+14x+7

statuscvo [17]3 years ago
5 0

f(g(x)) simply means g(x) is substituted for x in f(x)=7x^2

Since g(x)=x+1, then f(x)=7(x+1)^2

f(x)=7(x^2+2x+1)

f(x)=7x^2+14x+7

So f(g(x))=7x^2+14x+7

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