Please help me do this.
Write each quadratic equation in standard form, ax²+ bx+ c= 0 then identify the values of a, b, and c. Answer the question that follows.

1. (x+7)(x-7)= -3x
2. (x-4)² +8= 0
3. (x+2)²= 3(x+2)
4. (2x-1)² = (x+1)²
5. 2x(x+4) = (x-3)(x-3)

Please help me. Thank You :)