Xx+4x-21 – InterviewSolution

InterviewSolution

1.

Xx+4x-21

Answer»

x^2 + 4x - 21 = 0x^2 + 7x - 3x - 21 = 0x(x + 7) - 3(x +7) = 0(x +7)(x - 3) = 0x = - 7, 3

Value of x is -7 and 3

Discussion

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