Practice problem
Simplify: (9+3i)23−i\frac{(9+3i)^2}{3-i}3−i(9+3i)2
9+3i9+3i9+3i
9(3+i)59(3+i)^59(3+i)5
9(3+i)310\frac{9(3+i)^3}{10}109(3+i)3
9(3+i)3−i\frac{9(3+i)}{3-i}3−i9(3+i)
Type a concept, like “slope” or “photosynthesis”.
