Multiplying Polynomials and Solving Inequalities

Multiplying Polynomials

100

Multiply the following:

2x² (x²+2)

2x⁴+4x²

200

Multiply the following:

(x+2)(x+3)

x²+5x+6

300

Multiply the following:

(x-4)(x+4)

x²-16

400

Multiply the following:

(2x+1)(x-2)

2x²-3x-2

500

(x+2)(x²+2x+1)

x³+4x⁴+5x+2

Graphing Inequlaities

100

Would this have graph and open circle or closed circle?

What direction would the arrow point?

x >2

Open circle and to the right

200

Would this have graph and open circle or closed circle?

What direction would the arrow point?

x < 1

Open circle and to the left

300

Would this have graph and open circle or closed circle?

What direction would the arrow point?

x>=3

Closed Circle and to the right

400

Would this have graph and open circle or closed circle?

What direction would the arrow point?

x<=1

Closed circle and to the left

500

Would this have graph and open circle or closed circle?

What direction would the arrow point?

2  < x 

open circle to the right 

Solving for Inequalities

100

Solve the following

-2x >= -4

x <= 2

200

Solve the following

2x+2 <= 8

x<=3

300

Solve the following:

(3x)/2 > 9

x > 6

400

Solve the following:

(4x)/-2 < 8

x > -4

500

(x+2)/3 > 2

x > 4

Vocabulary

100

What is a negative times a negative?

Positive

200

How do you read the following:

x>=2

x is greater than or equal to 2

300

What is a coefficient?

The number in front of the variable (letter)

400

True or False: We multiply the exponents when multiplying polynomials.

False. We ADD exponents when multiplying polynomials.

500

When does the inequality sign switch direction?

When multiplying by a negative number or dividing by a negative number.