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OpenStudy (anonymous):
Let f(x) = 2x^2 − 9x and g(x) = -5x^2 + 4x. Find f(x) − g(x).
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OpenStudy (anonymous):
\[f(x)-g(x)=2x^2-9-(-5x^2+4x)\]
OpenStudy (anonymous):
now just some algebra to clean it up
OpenStudy (anonymous):
i kno i got it
OpenStudy (anonymous):
\[f(x)-g(x)=7x^2-4x-9\]
OpenStudy (anonymous):
good
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OpenStudy (anonymous):
7x^2-13x
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