Question

Use the discriminant to determine the number and type of solutions the equation has.

x2 + 8x + 12 = 0


a. no real solution


b. one real solution


c. two rational solutions


d. two irrational solutions

Answer 1

discriminant = square root (b^2 -4*a*c)
square root (64 -4*1*12) =
square root (16) =
4
Therefore it has 2 rational soltions