Question
Solve: 3x² − 7x − 6 = 0
Solution
3x² − 7x − 6 = 0 Product = 3 × (−6) = −18; need two numbers with sum −7 and product −18 → −9 and 2. 3x² − 9x + 2x − 6 = 0 3x(x − 3) + 2(x − 3) = 0 (3x + 2)(x − 3) = 0 So x = −2/3 or x = 3
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