find the sum and product of roots of a quadratic equation 4x² +3x-8=0

If ax^2+bx+c=0 is a quadratic equation, then

Sum of its roots = -b/a

Product of roots = c/a

4x² +3x-8=0

a=4; b=3; c=-8

Sum of its roots = -b/a=-3/4

Product of roots = c/a=-8/4=-2