First let's start with the equation:
x + y = -11
xy = -180
We can substitute -11 in for x + y to get:
xy = -180
x(-11) = -180
Now let's divide both sides by -11
x = 180/11
x ≈ 16.36
We can now use the equation x + y = -11 to solve for y
y = -11 - 16.36
y ≈ -27.36
The two numbers that add to -11 but multiply to -180 are 16.36 and -27.36.