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If f(x)=2x-5 and g(x)=x^2+1, what is g(f(x))
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If f(x)=2x-5 and g(x)=x^2+1, what is g(f(x))

User Llaffin
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1 Answer

3 votes

Answer:

4x² - 20x + 26

Explanation:

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

g(2x - 5 )

= (2x - 5)² + 1 ← expand factor using FOIL

= 4x² - 20x + 25 + 1

= 4x² - 20x + 26

User Ozirus
by
5.3k points
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