Solve for x:3 x2 + x – 1= 4x – InterviewSolution

1.

Solve for x:3 x2 + x – 1= 4x

Answer»

3x²+x-7=4x3x²+x-4x-7=03x²-3x-7=0x=-b+/-√(b²-4ac)/2a Here a=3;b=-3; c=-7

x=3+/-√(9+84) ----------------- 6x=3+/-√93 -------- 6

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