Simplify imaginary and complex numbers

(1-3i)(2+5i)

• 22-i
• 16-i
• 17-i

Tags

CCSS.HSN.CN.A.2

Simplify: 
(10+ 15i) - (48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Tags

CCSS.HSN.CN.A.2

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

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Tags

CCSS.HSN.CN.A.2

Simplify:
√-108

• 3i√6
• 3i√20
• 6i√3

• 20i√3

What does i² = ?

• -1
• √-1
• 1
• -√1

Tags

CCSS.HSN.CN.A.1

Simplify 
√-25

• -5i
• 5
• 5i

• -5

Which of the following is equivalent to (3-5i)-(6+2i)

• -3-7i
• -3-3i
• 3-3i
• 9-7i

Tags

CCSS.HSN.CN.A.2

(-8+i)+ (-2+i)

• -6
• -6+2i
• 2i-10
• -10+2i

Tags

CCSS.HSN.CN.A.2

Simplify:
√48

• 4√2
• 6√3
• 4√3

• 4√2

Find the square root: √1

• 0

• -1
• 1

• none

Tags

CCSS.8.EE.A.2