thehumble thehumble

18-07-2018
Mathematics

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If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1, find (f-g)(x)

If fxx26x1 and gx3x24x1 find fgx class=

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choixongdong choixongdong

18-07-2018

f(x) = - x^2 + 6x -1

and

g(x)=3x^2 - 4x - 1

(f-g)(x) = - x^2 + 6x -1 -(3x^2 - 4x - 1)

(f-g)(x) = - x^2 + 6x -1 - 3x^2 + 4x + 1

(f-g)(x) = - 4x^2 + 10x

Answer is A.

(f-g)(x) = - 4x^2 + 10x

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