7­3 day 1 ­ binomial radical expressions web.notebook
7­3 Day 1
Binomial Radical Expressions
February 04, 2009
Check Skills You'll Need
Multiply.
1. (5x + 4)(3x ­ 2)
2. (­8x + 5)(3x ­ 7)
3. (x + 4)(x ­ 4)
4. (2x ­ 9)2
Objective:
Add and subtract radical expressions.
Jan 24­1:05 PM
Jan 24­1:08 PM
Add or subtract if possible.
New Vocabulary
Like radicals are radical expressions that have the same index and the same radicand. We can add and subtract like radicals.
a. 5∛x - 3∛x
b. 4√2 + 5√3
d. 7∜5 - 2∛5
e. 4√xy + 5√xy
Jan 24­1:11 PM
c. 2√7 + 3√7
Jan 24­1:13 PM
You try!
Simplifying Before Adding or Subtracting
Simplify: Simplify: 6√18 + 4√8 - 3√72
√50 + 3√32 - 5√18
8√2
Jan 24­1:18 PM
Jan 24­1:18 PM
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7­3 day 1 ­ binomial radical expressions web.notebook
February 04, 2009
HOMEWORK
p. 382 #1­12, 27­32
Jan 24­1:23 PM
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