REVIEW Solving Quadratic Equations

Simplify. Express Answers in simplest Radical form.

• A

• B

• C

• D

Solve by taking the square root s.

• A

• B

• C

• D

Solve by taking squra roots.

• A

• B

• C

• D

Simplify.

• $-10i\sqrt{10}$

• $-5i\sqrt{10}$

• $2i\sqrt{10}$

• $-10\sqrt{10}$

Find the discriminant.

• A

• B

• C

• D

Simplify $\sqrt{-98}$  

•  $7i\sqrt{2}$  

•  $2i\sqrt{7}$  

•  $7\sqrt{2}$  

•  $7i$  

Use the discriminant to determine the number and what kind of solutions the equation has.
 $-r^2-6r-9=0$  

• 2 real solutions

• 1 real solution

• 2 imaginary solutions

Use the discriminant to determine the number and what kind of solutions the equation has.
 $5x^2-3x+2=0$  

• 2 real solutions

• 1 real solution

• 2 imaginary solutions

Solve using the Quadratic Formula

• A

• B

• C

• D

What is c, the number needed to complete the square ?
 $a^2+36a+c$  

•  $c=1296$  

•  $c=18$  

•  $c=324$  

•  $c=-36$