Practice problem
Which of the following is a quadratic equation?
0x2−2x+1=00x^2 - 2x + 1 = 00x2−2x+1=0
3x3−2x2+1=03x^3 - 2x^2 + 1 = 03x3−2x2+1=0
x2−2x+3=0x^2 - 2x + 3 = 0x2−2x+3=0
x−2=0x - 2 = 0x−2=0
Type a concept, like “slope” or “photosynthesis”.
