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Multiple Choice Questions
1. Find the roots of the quadratic equation : $$27x^2 + 57x - 14 = 0$$
(A): 2/9, 7/3
(B): 2/9, -7/3
(C): 9/2, 3/7
(D): 9/2, 3/7
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By: anil on 05 May 2019 02.13 am
Expression : $$27x^2 + 57x - 14 = 0$$ => $$27x^2 - 6x + 63x - 14 = 0$$ => $$3x(9x - 2) + 7(9x - 2) = 0$$ => $$(3x + 7) (9x - 2) = 0$$ => $$x = frac{2}{9} , frac{-7}{3}$$
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SSC CHSL 23 Jan 2017 Evening Shift
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