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Question
Solve : 5m² - 22m-15 = 0
Solution
5m² - 22m - 15 = 0
∴ 5m² - 25m + 3m - 15 = 0
∴ 5m (m - 5) + 3(m - 5) =0
∴ (m - 5) (5m + 3) = 0
∴ m - 5 = 0 or 5m + 3 = 0
∴ m = 5 or m = `−3/5`
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