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If h(x)=x^2-5x, g(x)=2x, f(x)=3x-2, what is h(f(g(x)))
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If h(x)=x^2-5x, g(x)=2x, f(x)=3x-2, what is h(f(g(x)))

User Gmiley
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1 Answer

5 votes

Explanation:

start from f(g(x))

f(g(x))= 3(g(x)) -2

f(g(x))= 6x -2

h(f(g(x)))=(f(g(x)))² -5(f(g(x)))

h(f(g(x)))=(6x-2)² -5(6x-2)

h(f(g(x)))=36x²-24x+4-(30x-10)

h(f(g(x)))=36x²-24x+4-30x+10

h(f(g(x)))=36x²-54x+14

User Viktor Lova
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