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REY [17]
3 years ago
15

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

Mathematics
2 answers:
Alborosie3 years ago
8 0
Complete the square.................
Alenkinab [10]3 years ago
3 0
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.
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