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If f(x) = 2x +1 and g(x)=x2, Find g(f(3))

Sagot :

fx) = 2x + 1

g(x) = x^2

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

g(f(3)) = [(2(3) + 1] ^2

g(f(3)) = [6 + 1]^2

g(f(3)) = 7^2

g(f(3)) = 49

2.-

f(x) = x^2 - 8

g(x) = -2 - x^2

y = f(x) + g(x)

y = x^2 - 8 -2 - x^2

y =

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