solve 5Msquare-22m-15=0
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5m² - 22m -15 = 0
⟹ 5m² - 25m + 3m -15 =0
⟹ 5m(m -5) +3(m-5) =0
⟹ (5m +3)(m-5) = 0
⟹ (5m +3) = 0
⟹ m = -3/5
⟹ (m-5) = 0
⟹ m = 5
⟹ Roots/solutions are -3/5 & 5
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