tyson100 tyson100

02-08-2016
Mathematics

contestada

if (f+g)(x)=3x^2+2x-1 and g(x)=2x-2 what is f(x).

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Panoyin Panoyin

02-08-2016

(f + g)(x) = 3x² + 2x - 1
g(x) = 2x - 2

(3x² + 2x - 1) - (2x - 2)
3x² + 2x - 2x - 1 + 2
3x² + 1

f(x) = 3x² + 1

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konrad509 konrad509

02-08-2016

[tex]f(x)=(f+g)(x)-g(x)\\ f(x)=3x^2+2x-1 -(2x-2)\\ f(x)=3x^2+2x-1 -2x+2\\ f(x)=3x^2+1\\ [/tex]

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