Use the discriminant, b2−4ac, to determine the number of solutions of the following quadratic equation. Then solve the quadratic equation −x^2=−18x+81
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Step 1
So, the given equation -x^2 = -18x + 81 can be rewritten as x^2 + 18x - 81 = 0. Now, we can identify the coefficients a, b, and c. Here, a = 1, b = 18, and c = -81. The discriminant of a quadratic equation is given by the formula b^2 - 4ac. Substituting the Show more…
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