Find f from (g o f)(x) and g(x)
This type of question, asked 2 times: 3 May 2023 S1, 11 Apr 2026 S2. All 2 questions below, oldest first.
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Question 1
3 May 2023 S1
133If g(x)=x2+x−1 and (g∘f)(x)=4x2−10x+5, then f(2) is equal to
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Question 2
11 Apr 2026 S2
68If g(x)=x2+x−2 and 21(g∘f)(x)=2x2−5x+2 then f(x) is equal to
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