Question

What are the roots of equation 10t^2-20t+20

Answer 1

in the given quadratic equation a=10,b=-20 and c=20
so,D(discriminant of the quadratic equation)=b^2-4ac
D=(-20)^2 -4×10×20=400-800
D=-400
D<0 so,given quadratic equation have imaginary.