(vTwo-fifth of y subtracted from y2 gives 42. – InterviewSolution

1.

(vTwo-fifth of y subtracted from y2 gives 42.

Answer»

The question says y² -(2/5)y = 42 => 5y²-2y- 210. , D = (-2)² -4(5)(-210) = 4204=> y = (2±√4204)/2

so, y can be 6.6838 and 6.2838

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