They both don't have the same number of zero as the answer because you are doing 40x500 which 20000 and 4x600 which is 2400
X+2y=4
3x-2y=4
4x=8
x=2
2+2y=4
2y=2
y=1
y=1
x=2
Hope this helps :)
Simplify by combining the real and imaginary parts of each expression.
1
,
−
96