2+i
____ I think I multiply top and bottom by 4+2i but I'm not sure if I do that
4 +2i or if Im suppose to change the middle sign first or what..? Any advice?
2+i
____ I think I multiply top and bottom by 4+2i but I'm not sure if I do that
4 +2i or if Im suppose to change the middle sign first or what..? Any advice?
You multiply top and bottom by the complex conjugate of the denominator: 4 - 2i.
2+i
____ I think I multiply top and bottom by 4+2i but I'm not sure if I do that
4 +2i or if Im suppose to change the middle sign first or what..? Any advice?