Identify the function in standard form.
A2x^2-4x+6=0
B5x^2 - 10x + 5 = 0
C3x^2 + 6x - 12 = 0
D3x^2 + 2x + 10 = 0
A2x^2-4x+6=0
B5x^2 - 10x + 5 = 0
C3x^2 + 6x - 12 = 0
D3x^2 + 2x + 10 = 0