Find The Roots Of Quadratic Equation: X2+x - 42 = 0? – InterviewSolution

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1.

Find The Roots Of Quadratic Equation: X2+x - 42 = 0?

Answer»

x2 + 7x - 6X + 42 = 0

X(x + 7) - 6(x + 7) = 0

(x + 7)(x - 6) = 0 => x = -7, 6.

x2 + 7x - 6x + 42 = 0

x(x + 7) - 6(x + 7) = 0

(x + 7)(x - 6) = 0 => x = -7, 6.

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