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How did they get the -5? I got -3
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How did they get the -5? I got -3

How did they get the -5? I got -3-example-1
User Sven Efftinge
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1 Answer

7 votes
f(x) = x² - 3x
g(x) = √x - 1

f(g(x))= (√x - 1)² - 3(√x - 1) = (√x - 1)(√x - 1 - 3) =(√x - 1)(√x - 4) =
= √x √x -1*√x -4*√x +4 = x -5√x +4

Answer: x -5√x +4
User Seva Kalashnikov
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