2*x^2 %2B 5*x - 12=0 – InterviewSolution

1.

2x^2 %2B 5x - 12=0

Answer»

2x^2 + 5x - 12 = 02x^2 + 8x - 3x - 12 = 02x(x + 4) - 3(x + 4) = 0(2x - 3)(x + 4) = 0x = 3/2, - 4

2x^2+5x-12=02x^2+8x-3x-12=02x(x+4)-3(x+4)=0(x+4)(2x-3)=0x+4=0 2x-3=0x=-4 x=3/2

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