-154*x^2 %2B 4*x^2 %2B 126=0 – InterviewSolution

1.

-154x^2 %2B 4x^2 %2B 126=0

Answer»

Use quadratic formula with a=4, b=-154, c=126.

x=−b±√b2−4ac/2a

x=−(−154)±√(−154)2−4(4)(126)/2(4)

x=154±√21700/8

x=774+54√217orx=774+−54√217

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