SOLUTION: Perform the indicated operation. Write the result in the form a + bi (9 + 7i) - (-4 + i) Please help...I am having so much trouble with these. Thank you guys for all your hel

Algebra ->  Algebra  -> Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Perform the indicated operation. Write the result in the form a + bi (9 + 7i) - (-4 + i) Please help...I am having so much trouble with these. Thank you guys for all your hel      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 30004: Perform the indicated operation. Write the result in the form a + bi
(9 + 7i) - (-4 + i)
Please help...I am having so much trouble with these.
Thank you guys for all your help!!!!!
Answer by Cintchr(475) About Me  (Show Source):
You can put this solution on YOUR website!
+%289+%2B+7i%29-1%28-4+%2B+i%29+ distribute the -1 and drop the ( )
+9+%2B+7i+%2B+4+-+1i+ add like terms
+13+%2B+6i+ done