What is the value of the discriminant for the quadratic equation –3 = –x2 + 2x?Discriminant = b2 – 4ac

Rewrite the equation in standard form: −3 = −x² + 2x becomes x² − 2x − 3 = 0. Thus a = 1, b = −2, and c = −3. The discriminant is b² − 4ac = (−2)² − 4(1)(−3) = 4 + 12 = 16, so the correct choice is 16.

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