unit 4 rational functions
DESCRIPTION
Unit 4 Rational functions. 8-4 multiply and Divide Rational expressions. Simplifying a Rational Expression. Simplify each. FACTOR. Multiply Rational expressions. Simplify each. Dividing rational expressions. SAME , CHANGE , FLIP !!!. Math at work. Simplify rational expressions. practice. - PowerPoint PPT PresentationTRANSCRIPT
Unit 4 Rational functions8-4 multiply and Divide Rational expressions
Simplifying a Rational Expression
103
1072
2
xx
xx32
23
6
24
yx
yx
)5)(2(
)5)(2(
xx
xx
)5(
)5(
x
xy
x4
Simplify each
FACTOR
Multiply Rational expressions
Simplify each
34
25
)5(
62
22
xx
x
x
xx
)1)(3(
)5)(5(
)5(
)2)(3(
xx
xx
x
xx
)1(
)5)(2(
x
xx
43 21
16
2
7
x
y
y
x
3442
112
yx
xy
233
8
yx
Dividing rational expressions•SAME , CHANGE , FLIP !!!
xx
x
xx
xx
62
1
12
452
2
2
2
1
62
12
452
2
2
2
x
xx
xx
xx )1)(4( xx
)3)(4( xx )1)(1( xx
)3(2 xx
1
2
x
x
1,1,3,4 x
110312
2
2
2
2
xxxxx
x
103
1
12
22
2
2
xx
x
xx
x
)1)(1( xx
)1)(1( xx
)2)(5( xx
)2( x
)2)(5)(1(
)1)(2(
xxx
xx
)5)(1(
)1(
xx
x
2,5,1 x
Math at work
Simplify rational expressions
)3)(6(
24
)5)(3(
)2)(5(
xx
x
xx
xx
3
183
124
1032
2
x
x
xx
xx
248
124
z
z
practice
•Pg 531 #8-12 even 15-25 odd