If an integer is added to its square, the sum is 90. Find the integer with the help of quadratic equation.

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Solution

Let an integer be x.

Then according to question

Or

Thus, an integer be

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If an integer is added to its square, the sum is 90. Find the integer with the help of quadratic equation.

Let an integer be x. Then according to question Or Thus, an integer be

Let an integer be x.

Then according to question

Or

Thus, an integer be