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Resolve the quadratic trinomials into factors:7x – 6x2 + 20 |
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Answer» We have, 7x – 6x2 + 20 – 6x2 + 7x + 20 6x2 – 7x – 20 The coefficient of x2 is 6 The coefficient of x is -7 Constant term is -20 So, we express the middle term -7x as -15x + 8x 6x2 – 7x – 20 = 6x2 – 15x + 8x – 20 = 3x (2x – 5) + 4 (2x – 5) = (3x + 4) (2x – 5) |
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