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Popular >

If one is added to eight times a number, the result is nineteen less than the square of the number. Find all such numbers.

Solution

If one is added to eight times a number, the result is nineteen less than the square of the number. Find all such numbers.

Solution

The number : 10 or - 2

Solution steps

Represent the number with

x

A.T.Q.:

8 x + 1 = x^{2} - 19

Solve for

x, 8 x + 1 = x^{2} - 19 : x = 10, x = - 2

The number : 10 or - 2

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