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OpenStudy (anonymous):
factor -4+8a-4a^2
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OpenStudy (math&ing001):
Factor by 4 then use the property (a+b)^2=a^2+2ab+b^2 (-4)*(a^2-2a+1)=(-4)*(a-1)^2
OpenStudy (anonymous):
thank you so much
OpenStudy (math&ing001):
Welcome
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