Practice problem
Which is a quadratic equation?
x=0x=0x=0
x⋅x=0x\cdot x=0x⋅x=0
x⋅x⋅x=0x\cdot x\cdot x=0x⋅x⋅x=0
x⋅x⋅x⋅x=0x\cdot x\cdot x\cdot x=0x⋅x⋅x⋅x=0
Type a concept, like “slope” or “photosynthesis”.
