11/8 Week 12 Khan Academy Review

What does i² = ?

• -1

• √-1

• 1

• -√1

4i • 5i

• 20

• -20

• 20i

• -20i

Tags

CCSS.HSA.APR.A.1

i • 3i

• 3i

• 4i

• -3

• 3

(-2i) • (5i)

• -10

• -10i

• 10

• 10i

Tags

CCSS.HSN.CN.A.2

(3i)(-2+4i)

• -6+12i
• -12-6i
• -2+7i
• 12+6i

Tags

CCSS.HSA.APR.A.1

Multiply: 
(4 – 3i)(-7 – 2i)

• A.  -23 + 13i
• B.  -23 - 29i
• C.  -34 + 13i
• D.  -34 - 29i

Tags

CCSS.HSA.APR.A.1

Simplify
(-6 - 2i)²

• 32
• 36-4i
• 36+24i
• 32+24i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Complete the Square
x² + 10x + ____

• x² + 10x - 100
• x² + 10x + 100
• x² + 10x - 25
• x² + 10x + 25

Tags

CCSS.HSA-REI.B.4B

Complete the square for
x² + 12x + ____

• x² + 12x + 144
• x² + 12x + 36
• x² + 12x - 36
• x² + +12x - 144

Tags

CCSS.HSA-REI.B.4B

Find the missing value "c" to create a perfect square trinomial:
x² + 26x + ___ 

• 13
• 136
• 169
• 26

Tags

CCSS.HSA-REI.B.4B