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OpenStudy (anonymous):
what is the answer too (5a-2a^2)-(-9a-4)
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OpenStudy (anonymous):
If it's just you needing to factorize, just expand everything out first, then collect like terms, look for common factors and take them out. So,
OpenStudy (anonymous):
\[5a-2a^2-(-9a-4)=5a-2a^2+9a+4=-2a^2+14a+4\]
OpenStudy (anonymous):
There is a common factor of 2, so\[2(-a^2+7a+2)\]would be your answer.
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