Question

solve this problem ​

Answer 1

Answer:

5.62 or 135/24. I hope it will be correct

Answer 2

alpha and beta are the roots of the equation

  2x^2+3x-6                                  let alpha =a and beta =b (for typing purpose)

sum of roots = -b/a             (a+b)^3=a^3+b^3+3ab(a+b)

                     = -3/2               substitute a+b and ab values to get

product of roots =c/a            a^3+b^3= -1/4 {equation 1}

                           = -6/2

                           = -3

asked is the value of

=a^2/b+b^2/a

taking LCM we get

=a^3+b^3/ab

from equation 1

= -1/4/ab        we know ab = -3

=3/4

hope so it will help you