dentify which of the following equations are quadratic and which are not 1. 2x²x+1 2 -x(x + 112 3. 3x(x + 2) 4. 2[x - 12 + 3 5. 202 + 4x-2-22 Write the quadratic equation in standard in standard form ax2 + bx + c = 0 identify the value of a, b and c. 2 C ax2 + bx+c=0 b ratic Equation​