Theory of Equations
Matching exercise
Match the items on the right to the items on the left.
Check
OK
2x²−6x+7=0
x²−2(k+2)x+7=0
x²−2px+p²-q²+2qr-r²=0
2x²−7x+13=0
roots are imaginary numbers
equal roots
roots are rational
no real roots.