Lesson 10­3.notebook March 13, 2014
Assignment:
1­­>L10.3, pg. 621­622, 2­24 (evens) ­ Due Tomorrow [3/14]
2­­>Test signed?
Lesson 10­3.notebook March 13, 2014
Lesson 10.3 WarmUp:
Determine how many solutions the following 
equations have:
1)  2x2  ­  7x  = ­2
2)  x2  +  25  =  ­10x
3)  x2  +  2x  +  5  =  0
Use the Quadratic Formula to solve the 
following:
4)  x2  ­  4x  =  12
5)  x2  +  20  =  12x  
Lesson 10­3.notebook March 13, 2014
Lesson 10.3:
*To add or subtract radical expressions...  the radicands must be alike!
(similar to "like terms")
...And, when adding or subtracting them, the radicands don't change!
ex­­> 4     5    +   2      5    =
Lesson 10­3.notebook March 13, 2014
*We can also use the distributive property to simplify radical 
expressions!
ex ­­> 3    5 (2    5    +    5    3)  =
Lesson 10­3.notebook March 13, 2014
Lesson 10.3 examples:
Simplify.
A) 3     5    +    6     5
B)   7     ­    6     7
C) 8      +     12     +     18 
Lesson 10­3.notebook March 13, 2014
D) 3  (    7     +   3   2  )
E) 4     5  (3    5   +   8   2 ) 
Lesson 10­3.notebook March 13, 2014
F) (    3    ­    2)(    15  +    12)
G) (5     2    +   3     5)(2    10    ­    5) 

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