Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Rational Expressions Day #2
Objective: To multiply and divide rational expressions
What is a rational expression?
A rational expression is the quotient of two polynomials. *Always go to the simplified form on any expression
*Rational fraction­ lowest terms
factor as far as you can
1
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Multiply:
1) 2x3y
3xy2
y4
2x5
2
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Simplify: 2)
3(x + 2)
x3
x(x - 4)
(x + 2)
3
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Simplify: 3)
3x2 - 3x
x2 + 4x - 5
x2 + x -20
3x
4
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Simplify: 4) x2 + 5x - 36
x2 - 11x + 28
x2 - 49
5
Tabb ­ Day 2 ­ Multiply and Divide.notebook
2xy4
5) 8x2y2z
÷
xz4
September 17, 2015
(multiply by the reciprocal)
3z5
6
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Simplify: 6) x2 - 4x - 21
x2 + 3x - 70
÷
5x + 15
x2 - 100
7
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Simplify: 7)
3x2 + 13x - 10
6x2
1
x(3x - 2)
8
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Simplify: 2
8﴿ 3x + 13x + 4
2
x ­ 4
4x + 16
8
x + 2
x + 1
9
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Simplify: 9)
2
10x ­ x ­ 24
3x
2
2x ­ 5x ­ 12
2
5x ­ 8x
10
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Simplify: 10)
2
x + x ­ 6
2
6x ­ 2x
2
5x ­ 7x ­ 6
2
12x ­ x ­ 1
10x + 6
x + 3
11
Tabb ­ Day 2 ­ Multiply and Divide.notebook
September 17, 2015
Assignment: Assignment: Wksht #2
Worksheet #2
12