Heinagloryviz Heinagloryviz Math Answered Write each quadratic equation in standard form and identify the values of a, b, and c. 1. (X+7) (X-7) = -3x2. (X-4)²+8=03. (X+2)²=3(X+2)4. (2X - 1)²=(X+1)²5. 2X(X+4)=(X-3)²