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OpenStudy (anonymous):
a^2-12a+36=49
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OpenStudy (anonymous):
(a-13)(a+1)
OpenStudy (akshay_budhkar):
a^2-12a-13=0 a^2-13a+a-13=0 a(a-13)+1(a-13)=0 (a+1)(a-13)=0 therefore a=-1 or a =13
OpenStudy (istim):
Solving for a? Just subtract 49 from both sides, and complete standard procedures
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