since x>0 and y<0, x is just x, but y is -y.
but how do I simplify the -xy?

is it -(x•(-y)) or -x•(-y), or what?

what does the negative sign before xy mean? is the x or y negative? or both? ​

since xgt0 and ylt0 x is just x but y is y but how do I simplify the xy is it xy or xy or whatwhat does the negative sign before xy mean is the x or y negative class=