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If the roots of the equation (c? - ab) x...

If the roots of the equation (c? - ab) x2 -2(a²-bc)x + b2 - ac = 0 in x are equal, then show that either D a = 0 or a + b3 + c3 = 3abc. 072-22-63 April 2017) sannsecutive natural numbers are such that the square of the middle number exceeds the difference

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