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If the sum of the zeroes of the quadratic polynomial f(x) = kx2 + 7x - 5 is 14, then the value of k is |
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Answer» Let the zeroes be a and b So, given a + b = 14 .....(1) Now, kx2 + 7x - 5 x = k, y = 7, z = -5 From (1), a + b = 14 -y/x = 14 -7/k = 14 14k = -7 k = -7/14 k = -1/2 |
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