Answers

2014-06-11T16:54:30+05:30
2x³ - 5x² - 14x + 8 = 0
put x = -2 we get 0 hence x = -2 is a root of the given equation 
2x²(x+2) -9x(x+2) +4(x+2) = 0
(x + 2)(2x² -9x +4) = 0
(x + 2)(2x² -8x - x + 4) = 0
(x + 2){2x(x-4) -1(x-4)} = 0
(x+2)(x-4)(2x-1) = 0
x = -2, 4, 1/2


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