Which of the following equations has only one solution? 1. x^2 = 9 2. x(x-1) = 9 3. x^2 - 6x + 9 = 0
Added by Milagros F.
Step 1
Step 2: The discriminant of a quadratic equation in the form ax^2 + bx + c = 0 is given by the formula b^2 - 4ac. Step 3: Let's calculate the discriminant for each equation: Show more…
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