Express (4-5i)(-5+5i) in the form a+bi , where a and b are integers and i^2=-1.
FOIL:
(4 - 5i)(-5 + 5i)
= (4)(-5) + (4)(5i) + (-5i)(-5) + (-5i)(5i)
= -20 + 20i - 25i - 25
= -45 - 5i
Actually I figured it out it's 5 + 45i. Ty for trying tho!!
+273 
