f (x)=4x^2+4x+8, g (x)=4x-7 find (g*f)(x)

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25-07-2017
Mathematics

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f (x)=4x^2+4x+8, g (x)=4x-7 find (g*f)(x)

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nicolson123 nicolson123 · Answer 1 · 2017-07-25T16:46:15+02:00

nicolson123 nicolson123

25-07-2017

bruh thats hard but still ill give it a try promises me you going to thanks me

g*f = (2x -6)*(-4x+7) = -8x2 + 14x + 24x - 42 = -8x2 + 38x - 42

Then, (g*f)(1) = -8 (1)2 + 38 (1) - 42 = -12

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