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valina [46]
4 years ago
10

How do you solve the equation u^2-8=7u by factoring?

Mathematics
1 answer:
pantera1 [17]4 years ago
3 0
u^2-8=7u
u^2-7u-8=0
u^2-8u+u-8=0
u(u-8)+(u-8)=0
(u-8)(u+1)=0
\boxed{u=8\lor u=-1}
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