Intro to complex numbers

Identify the imaginary part in this complex number

7+3i

• 7

• 3

• 3i

Find the sum of 7+8i and 6-2i

• 13 + 6i

• 1 + 6i

• 13 + 10i

• 1 + 10i

• 10
• -10
• 10i
• -10i

Simplify 
√-25

• -5i
• 5
• 5i
• -5

Simplify
2i - 7i + 10

• -5i+10
• 5i
• 9i+10
• 5i+10

Find the sum.
(5-2i) + (-7+8i)

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

What is the simplified form of (-9 + 5i) + (3 -2i)

• -12 + 31i

• -6 + 3i

• -11 + 7i

• 5 - 3i

Last one, let's make it a subtraction problem

What is the simplifies form of

(11 - 7i) - (-3 + 12i)

(remember to distribute the negative)

• 8 - 19i

• 8 + 5i

• 13- 19i

• 14 -19i

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i
• 7 − i 
• 1 − 13i
• 1 − i 

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i
• 7 − i 
• 1 − 13i
• 1 − i