Question

. If a and b are the roots of the equation 2x^2-3x-1=0, find the value of a-b

Answer 1

Answer:

don't know if you have any idea so please give me,

Answer 2

D=b^2-4ac

=9+8=17

x=-b+,-√(b^2-4ac)/2a

=(3+√17)/4,(3-√17)/4

so

a-b=2√17/4

=√17/2