Simplify.  Write answers in the form of a+b i where a and b are real numbers. (-4-2 i ) 2 (6+5 i ) 2 Solution 1)(-4-2 i ) 2 formulas: (a + b)^2 = a^2 + b^2 + 2ab i^2 = -1 (-4-2 i ) 2 ==>16 -4 + 16i = 12 + 16i a = 12 and b = 16 (6+5 i ) 2 ==>36 - 25 + 60i ==> 11 + 60i a = 11 and b= 60 .

1. Simplify.  Write answers in the form of a+b i where a and b are real numbers.
(-4-2 i ) 2
(6+5 i ) 2
Solution
1)(-4-2 i ) 2
formulas: (a + b)^2 = a^2 + b^2 + 2ab
i^2 = -1
(-4-2 i ) 2
==>16 -4 + 16i = 12 + 16i
a = 12 and b = 16
(6+5 i ) 2
==>36 - 25 + 60i ==> 11 + 60i
a = 11 and b= 60