B. Determine whether each of the following is a quadratic equation or not. 1. 2x²+ 6x = 5 %3D 2. 4x? -7x² = 0 3. x(4x?) = -12x² + 4x – 52 4. –x(-6x + 1) + 9 = -6x 5.0 = -(x – 7)? + 3(y + 2) -3y %3D |

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