Using the quadratic formula to solve x squared is equal to 5 minus x , what are the values of x ?

Rewrite the equation in standard form: x² + x − 5 = 0. Here a = 1, b = 1, and c = −5, so the quadratic formula gives x = (−1 ± √(1² − 4(1)(−5)))/2 = (−1 ± √21)/2. These are the values in choice D.

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