Complex Numbers Radical Expressions

Simplify the following expression:

(-2+6i)(2-6i)

• 32+24i

• -32+24i

• -32+24i

• 40

Simplify the following expression:

(5+6i)(5-6i)

• 11

• 61

• -11

• 22

Which of the following is the complex conjugate for -5-19i

• -5-19i

• -5+19i

• -5+19i

• 5+19i

Simplify the following expression

• 
• 
• 
• 

Which of the following is a pure Imaginary number?

• 4+8i

• 2-i

• 16i

• -8+12i

Simplify the following expression:

(5-5i)(-2+3i)

• 25

• 10-15i

• 5+25i

• -10-15i

In order to ​ (a)   complex numbers, you must multiply both the numerator and denominator of your fraction by the​ ​ (b)   of the ​​ (c)   in order to ​ (d)   the denominator.​

• denominator

Number pairs in the form a + bi and a - bi.

• imaginary number

• vertex

• complex conjugates

• radical expressions