Chapter 9 Review

Square Roots

100

What is the square root of 9?

3

200

What is the square root of 36?

6

300

What is the square root of 256?

16

400

What is the square root of 0?

0

500

What is the square root of -32?

No solution

Solving with Square Roots

100

x²=16

x=4 and x= -4

200

x²-36=0

x=6 and x=-6

300

x²+32=32

x=0

400

x²-16=65

x=9 and x= -9

500

x²+36=0

No solution

Simplifying Radicals

100

Simplify: 

√(24)

2√(6)

200

Simplify: 

√(75)

5√(3)

300

Simplify: 

√(96)

4√(6)

400

Simplify: 

√(288)

12√(2)

500

Simplify: 

√(588)

14√(3)

Quadratic Equations

100

Solve the following using the Quadratic Formula:

x²-5x-14=0

x=7

x=-2

200

Solve the following using the Quadratic Formula:

2x²+2x-12=0

x=2

x=-3

300

Solve the following using the Quadratic Formula: 

x² + 4x + 3 = 0

x=-1

x=-3

400

Solve the following using the Quadratic Formula: 

2x² + 9x = −7

x=-1

x=-3.5

500

Solve the following using the Quadratic Formula: 

5x² + 9x = −4

x=-0.8

x=-1

Discriminants

100

What is the value of the discriminant?

6x² − 2x − 3 = 0

76

200

What is the value of the discriminant?

5x² + x − 2 = 0

41

300

What is the value of the discriminant?

−2x² − x − 1 = 0

-7

400

How many solutions does the following equation have?

4x² = 8x − 4

Discriminant=0

1 Solution

500

How many solutions does the following equation have?

−4x² − 4x = 6

Discriminant=-80

No Solutions