Solve by factoring m^2+8m+7=0

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asked Jan 7, 2018 57.4k views

2 Answers

JianMing Wang · Answer 1 · 2018-01-12T03:02:45+0000

We can use completing the square.We add 16 and subtract 7 to both sides. Now we get m^2+8m+16=9. The left sides becomes (m+4)^2=9. Taking the square root of both sides and subtracting 4 we get -1 and -7.

Solve by factoring m^2+8m+7=0

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