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3 years ago

Given f(x)=2x + 5 and g(x)=x^2 - 3 f(3)= g(2)= g(f(-1))= f(g(-1))= g(f(x))=

Mathematics

1 answer:

Igoryamba3 years ago

4 0

Answer:

See below

Step-by-step explanation:

Given

f(x)=2x + 5 and
g(x)=x^2 - 3

=================

f(3)

f(3)= 2*3 + 5 = 11

g(2)

g(2)= 2^2 - 3 = 1

g(f(-1))= 6

f(-1) = -2 + 5 = 3

g(3) = 3^2 - 3 = 6

f(g(-1))= 1

g(-1) = (-1)^2 - 3 = -2

f(-2) = -2*2 + 5 = 1

g(f(x))

g(f(x))= (2x +5)^2 - 3 = 4x^2 + 20x + 25 - 3 = 4x^2 + 20x + 22

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