Discriminant, Complex #s, Quad Formula

What is the discriminant for  $5x^2+x-2=0$  

• -39

• 42

• -41

• none of these

Simplify i³⁷

• 1

• i

• -i

• -1

Tags

CCSS.HSN.CN.A.2

Simplify (11 + 5i)(11 - 5i)

• 121 -110i

• 121 + 110i

• 146

• 121 - 25i²

Tags

CCSS.HSN.CN.C.8

Solve with the Quadratic Formula
 $p^2-10p-52=0$  

•  $5\pm\sqrt{77}$  

•  $-5\pm\sqrt{77}$  

•  $5\pm77$  

•  $5+i\sqrt{77}$  

For the function below, is the Discriminant positive, negative, or zero?

 $y=-x^2-2x-10$  

• Positive

• Negative

• Zero

• Not Sure

• A
• B
• C
• D

Solve by using the Quadratic Formula

 $x^2+6x+27=0$  

•  $3\pm\sqrt{18}$  

•  $3\pm i\sqrt{18}$  

•  $-3\pm i\sqrt{18}$  

•  $-3\pm\sqrt{18}$