solve for 8m^2 +20m=12 for m by factoring

2 answers

divide by 4 first

2 m^2 + 5 m - 3 = 0

(2m-1)(m+3) = 0

m = 1/2 or -3
8m^2 +20m=12
8m^2 +20m-12=0

divide each term by 4

2m^2 + 5m - 3 = 0
(2m - 1)(n + 3) = 0

m = 1/2 or m = -3
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