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19-06-2018
Mathematics

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help! find g(x)-f(x) if f(x)=-3x+4 and g(c) =5x-12

help find gxfx if fx3x4 and gc 5x12 class=

Respuesta :

19-06-2018

Replace f(x) and g(x) with what they equal:

[tex]5x - 12 - (-3x + 4)[/tex]
[tex]5x - 12 + 3x - 4[/tex]

Combine like terms:

[tex]5x + 3x = 8x[/tex]
[tex]-12 - 4 = -16[/tex]

[tex]8x - 16[/tex]

The answer is C.

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