1. 7.6 Solving Radical Equations
Obj: to solve equations involving radicals
Do Now: what is the inverse operation for
addition?
subtraction?
multiplication?
division?
a power of 2?
a square root?

2. Ex 1: Solve. b) a)
check your solutions!

3. Ex 2: a) b)
check your solutions!!

4. Ex 3: HW: Factor this to solve! Bust da B is too long…
let’s try a shortcut
HW:

5. from Ex 3: continued… check your solutions!!
Obj: to solve equations involving radicals
Do Now: check the solutions from yesterday’s Ex 3
from Ex 3:
check your solutions!!

6. So, why didn’t one of the solutions work?
The solution that did not work is called an extraneous solution.
An extraneous solution is a false solution.
This is the reason why you MUST check all solutions!!

7. Ex 4: a) b)
Don’t forget to check your solutions!!