1.

2. SOLVE.: 3m² + 4m-7 = 0.​

Answer»

3m² + 4M - 7 = 0

3m² - 3m + 7M - 7 = 0

3m (m-1) +7 (m-1) = 0

(m-1) (3m+7) = 0

m-1 = 0 and 3m+7 = 0

m = 1 and m = -7/3



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