Factoring and Square Roots and Imaginary Numbers

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Tags

CCSS.8.EE.A.2

Factor

x² + 9x - 36

• x= -12 x= 3

• x= -9 x= 4

• x= 12 x= -3

• x= 9 x= 4

Solve
(x-5)² = 25

• ±0
• ±10
• 10, 0
• -10, 0

Tags

CCSS.HSA-REI.B.4B

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

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Tags

CCSS.HSN.CN.A.2

-5x² = -50

• ± 5
• ± 10
• ± √10
• -10

Tags

CCSS.8.EE.A.2

Factor
 $3v^2-4v-7$ 

• v= $\frac{7}{3}$   v= -1

• v= 7   v= 1

•  $v=\frac{-1}{3}$  v= 9

• v= -3   v= 10

Simplify: 
(10+ 15i)-(48 - 30i)

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

Tags

CCSS.HSN.CN.A.2

Multiply: 
(4 – 3i)(-7 – 2i)

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

Tags

CCSS.HSN.CN.A.2

Solve for x: 
(x+6)²=49

• x=7,12
• x=±7
• x=1,-13
• x=43,-55

Tags

CCSS.8.EE.A.2

Solve
(x+3)²-5 = 9

• ±√14 -3
• √14 - 3
• ±11
• ±5

Tags

CCSS.HSA-REI.B.4B