what 2 numbers when multiplied = -12 but added = -3?

Answer 1

xy=-12, x+y =-3

x=-12/y

-12/y + y = -3

multiply by y

-12 +y^2 = -3y

y^2 +3y -12=0

use the quadratic formula

y =-3/2+/-.5sqr(9+48)

y = -1.5 +/-.5sqr57

one number is -3/2 + (sqr57)/2= about 2.275

the other number is -3/2 - (sqr57)/2= about -5.275

they sum to -3. Their product=-12