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Find the zeroes of the quadratic polynomials 3x2 + x – 4 = 0. |
Answer» Let f(x) = 3x2 + x ˗ 4 = 3x2 + 4x - 3x ˗ 4 = x (3x + 4) - 1(3x + 4) = (3x + 4) (x ˗ 1) To find the zeroes, set f(x) = 0 (3x + 4) (x ˗ 1) = 0 3x + 4 = 0 or x ˗ 1 = 0 x = -4/3 or x = 1 |
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