$\sqrt{-49}-\ \sqrt{49}$  
Rewrite

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

What is the solution set to x² = 2x – 5?

• {±i}
• {2 ± 2i}
• {1 ± 2i}
• {1, 2}

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Which is a factor of 3x² + 10x – 8 = 0?

• (x - 4)
• (2x - 3)
• (x + 6)
• (3x - 2)

Tags

CCSS.HSA.APR.B.2

What is the inverse of y = 2x + 4?

• y = ( x -4)/2
• x = 2y + 4
• 2y = x - 4

Tags

CCSS.HSF-BF.B.4A

Use the quadratic formula to find the solutions for
 $y=-x^2-5x+12$  

• No Real Solution

•  $\frac{5\pm\sqrt{73}}{-2}$  

•  $\frac{-5\pm\sqrt{73}}{-2}$  

•  $\frac{5\pm\sqrt{73}}{2}$  

Tags

CCSS.HSA-REI.B.4B

 $\sqrt{-4}$ 

• -2

• -2i

• 2

• 2i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

What does i² = ?

• -1
• √-1
• 1
• -√1

Tags

CCSS.HSF-IF.C.8B

Simplify:  $\sqrt{45n^3}$ 

•  $3n\sqrt{5n}$  

•  $4n\sqrt{8}$  

•  $4n\sqrt{-8}$  

•  $10\sqrt{n}$  

Tags

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.2

Simplify:
(3 + 2i) + (4i + 6)

• 9 + 6i
• 7i + 8
• 9 + 6i²
• 9 - 6i

Tags

CCSS.HSN.CN.A.2

Simplify:
(4 + 7i) - (3 + 2i)

• 1 + 5i
• 7 + 9i
• 1 + 9i
• -1 + 5i

Tags

CCSS.HSN.CN.A.2