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Mathematics 15 Online
OpenStudy (anonymous):

Please help! Given f(x)=4x^2+3x-5 and g(x) = -2x+12, find (fg)(x)

OpenStudy (luigi0210):

Do you mean f(g(x))?

OpenStudy (anonymous):

@Luigi0210

OpenStudy (luigi0210):

Oh, so just subtract the two equations. \[2x^2+8x-4-(-5x+6)\]

OpenStudy (luigi0210):

\[2x^2+8x-4+5x-6\] Combine like terms

OpenStudy (luigi0210):

If I'm not mistaken then the answer should be b

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