PROBLEM 3 [2 points] Simplify the following expressions into the basic complex number formz = x tiy or z = ret 1+i z = (1+i)(1 -i) ; z=(1+i + 22+ 3;3+ 44)(3 + 1) ; z 2 - (1 +i)(2 +i)(1 + 3)(201 + 403 ) (23 + 5) (2345 -5432; ) Z = (1-i)(1- 4)(3 + 13)(403 -201;) (369 -i) (1 + 5671) Make sure to check your answers in Mathematica, because I constructed some of these problems knowing the answers beforehand while for others I wrote down random numbers