March 09, 2016
8.6 Solving Rational Equations
Warmup
Simplify the rational equation. Check for extraneous solutions!
LCD=
x(x-1)
check it!
March 09, 2016
8.6 Solving Rational Equations
Find the LCD of the entire equation...
Check for extraneous solutions...
1. What are the solutions
of the rational equation?
Multiply the entire equation
by the LCD...all fractions disappear!
LCD=
(x+3)(x-3)
check it!
check it!
March 09, 2016
2.)
LCD=
(x+1)(x-1)
check it!
check it!
March 09, 2016
3.)
LCD= x+2
check !
check !
March 09, 2016
4.)
LCD=
(x+1)(x+4)
check it!
March 09, 2016
5.)
LCD=
(x+2)(x+1)
check it!
March 09, 2016
Solving rational equations with
a calculator....
6.)
Left side = y1
Right side = y2
March 09, 2016
7.)
x=-3.75
March 09, 2016
HW p. 546;21-29 odd, 39, 41-51 odd
Use the calculator to solve 21-29. Solve 43-51 by hand.
March 09, 2016
HW p. 546;21-29 odd, 39, 41-51 odd