ADVANCED EXERCISES

(3)

 Find all real solution(s) for each of the
following equations by using the quadratic formula.  (Note: some
equations might not have any real solutions.)

 (a) 2x2 + x -  = 0

 (b) kx2 + (3 - 2k)x - 6 = 0; solve for x

 (c) (2x + 5)(x - 3) = 6

HINT:

 Remember, the quadratic formula is 

Also,
(b) k is just a constant
(c) FOIL out, then make one side of the equation zero and apply the quadratic formula