SOLUTION: perform operation and write answer in stand form please (-6+i)(-6-i)

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: perform operation and write answer in stand form please (-6+i)(-6-i)      Log On


   

Question 53508: perform operation and write answer in stand form please
(-6+i)(-6-i)
Found 2 solutions by mathchemprofessor, bubblz190:
Answer by mathchemprofessor(65) About Me  (Show Source):
You can put this solution on YOUR website!
(-6+i)(-6-i)=(-6)^2-i^2=36-(-1)=36+1=37, using (a+b)(a-b)=a^2-b^2

Answer by bubblz190(11) About Me  (Show Source):
You can put this solution on YOUR website!
(-6+i)(-6-i)
36 + 6i - 6i - i^2
36 - i^2
Since i^2=-1:
36-(-1) = 37