SOLUTION: Please help!
I have so simplify each expression:
1. (2 + 3i) + (4+ 5i)
2. (5 + 4i) - (1+2i)
3. (20 + 6i)- (7 + 15i)
Thank you so Much!
Algebra.Com
Question 527580: Please help!
I have so simplify each expression:
1. (2 + 3i) + (4+ 5i)
2. (5 + 4i) - (1+2i)
3. (20 + 6i)- (7 + 15i)
Thank you so Much!
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Add the real parts and then add the real coefficients of the imaginary parts. The distributive property still applies as regards to the sign between the two complex numbers.
In general:
\ +\ (c\ +\ di)\ =\ (a\ +\ c)\ +\ (b\ +\ d)i)
or
\ -\ (c\ +\ di)\ =\ (a\ +\ bi)\ +\ (-c\ -\ di)\ =\(a\ -\ c)\ +\ (b\ -\ d)i)
John
My calculator said it, I believe it, that settles it
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