Can someone tell me if I did this correctly, they have seriously changed things from the last time I was in school :)
Add the complex expressions, and simplify.
(-5.3 + 8.1i) + (5.1 + 8.5i)
-27.03 + 16.6i

Question

Can someone tell me if I did this correctly, they have seriously changed things from the last time I was in school :)
Add the complex expressions, and simplify. 
(-5.3 + 8.1i) + (5.1 + 8.5i) 
-27.03 + 16.6i

eyust707 · Answer

i is additive so just treat i as any other variable

anonymous · Answer

Complex numbers add just as if i was a constant.
-0.2+16.6i

anonymous · Answer

They only get weird when you multiply/divide, because then it's kind of like a rotation.

anonymous · Answer

I have no ideal why I put -27.03 down. Do I solve for i now or just leave it as is?

anonymous · Answer

You can't solve it for i, with complex numbers .....(x1)  +/-  .....(i) is as basic as it gets

anonymous · Answer

i is just the sqrt(-1), so if you replace i for $$\sqrt{-1}$$, you don't get any simpler

anonymous · Answer

Ok, thank you. Sorry for the delay in response, my program stopped working