Posted by **Sophie** on Wednesday, June 24, 2009 at 5:25pm.

Simplify: (-1-2i)+(4-6i)

I get 3-8i and 5-8i... confused, which one is it?

- math -
**Reiny**, Wednesday, June 24, 2009 at 5:58pm
I get 3-8i

how did you get **5** - 8i ??

-1 + 4 = 3 not 5

- math -
**MathMate**, Wednesday, June 24, 2009 at 6:00pm
3-8i is correct.

(-1-2i)+(4-6i)

= -1-2i + 4-6i

= -1+4 -2i -6i

= 3 - 8i

- math -
**Sophie**, Thursday, June 25, 2009 at 1:06pm
I get confused with negatives sometimes! thanks though!!

## Answer this Question

## Related Questions

- math 1 question - Simplify the following expression: 5^2 - 4 / 5 +2 is it 3 or ...
- math - Simplify the expression 6x x 2x^3 x 3x^2y^2/3x^3 x x^4y. I'm confused. ...
- algebra 1 help - simplifying square roots 1) find volume of this prism? v=bwh b...
- Math - Another one. I get real confused with all this Multiply, Simplify if ...
- Math To: Reiny - This is one whole question: (12) (10xy^3) (3x^2y^2) (5x) (2y) ...
- Confused - We are doing distributive properties. Ex: 0.5(4m+3)-0.2(6m+1) OKay so...
- Math- Completely confused! - Simplify each expression (where possible) and ...
- Math problem - subtract simplify if possible i am confused (4-z)/(z-6)-(6z-5)/(6...
- math - simplify: 2sqrt50 - sqrt8 I am confused because of the 2 before the ...
- Math - The directions for this problem is to simplify the equation using like ...