4 times a number is 12 less than the square of that number. find the n – InterviewSolution

1.

4 times a number is 12 less than the square of that number. find the negative solution.

Answer»

Let the number be nGiven condition4n = n^2 - 12n^2 - 4n - 12 = 0n^2 - 6n + 2n - 12 =0n(n - 6) + 2(n - 6) = 0(n+2)(n-6)=0n = - 2, 6

Negative solution is - 2

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