Download 1) 3x+6=15 2) x2+2x=15

rational_equations_day1_2.notebook
November 21, 2016
Topic: Rational Expressions
Aim: How do we solve rational equations with monomials
in the denominator?
HW: WS (On Website-only do #1-5 tonight)
Do Now: Solve for all value(s) of x.
1) 3x+6=15
2) x2+2x=15
May 13­7:54 AM
Joe solved the equation below and stated the solution was x=0.
His teacher told him the answer cannot be zero, explain why the
teacher would say that to Joe?
Nov 5­10:44 AM
1
rational_equations_day1_2.notebook
November 21, 2016
**Fractional equations will have an equal
sign and result in an answer. (x=)
Steps for Solving
1) Find a common denominator for each
fraction.
2) Drop denominators.
4) Solve the resulting equation.
5) Check for extraneous roots.
**Extraneous roots are roots that when
checked do not work.
Oct 28­2:14 PM
Solve for all values of the missing variable & check!
Ex 1:
Ex 2:
May 17­7:45 AM
2
rational_equations_day1_2.notebook
Ex 3:
November 21, 2016
Ex 4:
When your equation
is a PROPORTION
you can just cross
multiply!
May 17­7:51 AM
Ex 5:
Ex 6:
Nov 21­10:00 AM
3