SOLUTION: Perform the operation and write results in standard form; 1.(2+3i)^2+(2-3i)^2 2.(Sqrt 14+sqrt 10i)(sqrt 14-sqrt 10i) 3.12i(1-9i)

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Perform the operation and write results in standard form; 1.(2+3i)^2+(2-3i)^2 2.(Sqrt 14+sqrt 10i)(sqrt 14-sqrt 10i) 3.12i(1-9i)       Log On


   

Question 959844: Perform the operation and write results in standard form;
1.(2+3i)^2+(2-3i)^2
2.(Sqrt 14+sqrt 10i)(sqrt 14-sqrt 10i)
3.12i(1-9i)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.%282%2B3i%29%5E2%2B%282-3i%29%5E2=%284%2B12i%2B9i%5E2%29%2B%284-12i%2B9i%5E2%29
%282%2B3i%29%5E2%2B%282-3i%29%5E2=8-18
%282%2B3i%29%5E2%2B%282-3i%29%5E2=-10
.
.
2.
sqrt%2814%29%2Bsqrt%2810%29i%29%28sqrt%2814%29-sqrt%2810%29i%29=14%2B10
sqrt%2814%29%2Bsqrt%2810%29i%29%28sqrt%2814%29-sqrt%2810%29i%29=24
.
.
3.12i%281-9i%29=12i-108i%5E2
12i%281-9i%29=12i%2B108
.12i%281-9i%29=108%2B12i