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OpenStudy (anonymous):
Simplify 3x^2 – 5x^2 + 7x by combining like terms.
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OpenStudy (anonymous):
-\[-2x ^{2}+7x\]
OpenStudy (anonymous):
x(-2x+7)= -2x^2+7x
Directrix (directrix):
I agree with - 2x^2 + 7x
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