Quadratic Equations with Real or Complex Solutions

Solve By Square Roots:



 $5m^2-3=127$  

•  $\sqrt{26}$  

• 26

•  $\pm\sqrt{26}$  

•  $\pm26$  

Tags

CCSS.8.EE.A.2

Solve By Square Roots:

 $5v^2+2=-5$  

•  $\pm\sqrt{\frac{7}{5}}$  

•  $\sqrt{\frac{7}{5}}$  

•  $\pm i\sqrt{\frac{7}{5}}$  

•  $\pm i\sqrt{\frac{3}{5}}$  

Tags

CCSS.HSA-REI.B.4B

Solve by the Quadratic Formula:

 $9u^2-11u+7=0$  

•  $\frac{-11\pm\sqrt{131}}{18}$  

•  $\frac{11\pm\sqrt{131}}{18}$  

•  $\frac{11\pm\sqrt{131}}{-18}$  

•  $\frac{11\pm i\sqrt{373}}{18}$  

Tags

CCSS.HSA-REI.B.4B

How many solutions should a quadratic equation have based on its degree?

• 1
• 2
• 3
• 4

Tags

CCSS.HSA.REI.B.4

CCSS.HSN.CN.C.9

How does the quadratic equation show that there should be two complex solutions?

• b²
• ±
• b² - 4ac
• 2a

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve for x: 

• x = {-4, -1}
• x = {-1, -4}
• x = {2+i, 2-i}
• x = {-2+i, -2-i}

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve for x:

• x = {-3+2i, -3-2i}
• x = {7, 6}
• x = 2±i√3
• No solution

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Identify the zeros of the graph

• (0, -3)
• (-1, 0) and (3, 0)
• (1, -4)
• None of the above

Tags

CCSS.HSF-IF.C.7A

____________
For the function above, is the discriminant positive, negative, or zero?

• Positive
• Negative
• Zero
• Not Sure

Tags

CCSS.HSA.REI.B.4

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

Tags

CCSS.HSA-REI.B.4B