Question

solve the equation 2 by 5 x square minus x minus 3 by 5 is equals to zero by using quadratic quadratic formula​

Answer 1

Answer:

given quadratic equation is 2x²/5-x-3/5=0

Now,D=b²-4ac

=(-1)²-4(2/5)(-3/5)

=1+24/25

=49/25

since,D>0

so,roots are real and distinct

by quadratic formula

x=-b±√D/2a

=-(-1)±√49/25/2×2/5

=1±7/5/4/5

=(5±7/5)5/4

=5±7/4

taking +ve. taking -ve

x=5+7/4. x=5-7/4

x=12/4. x=-2/4

x=3. x=-1/2