Youtor
Algebra 1 102 Simplifying Radical Expressions
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=GmwI1zo3AjQ
0:00 Introduction • 0:41 - Vocabulary • 1:46 - Product Property of Simplifying Square Roots • 3:29 - Why bother simplifying Radicals? • 5:03 - How do you know what to factor the radicand into? • 5:16 - Example: Simplify sqrt(75) • 7:22 - How do you know you simplified it correctly? • 8:55 - Example: Simplifying with numbers variables • 11:26 - Quotient Property of Simplifying Square Roots • 11:51 - Example: Simplify a Quotient • 15:40 - Rationalizing the Denominator (You can't leave a radical in the denominator) • 16:03 - Example: Rationalizing a Denominator • 18:24: Example: sqrt(15) * sqrt(15) • 19:25 - Example: multiplying square roots • 21:39 - You Try Example • 24:55 - Rationalizing denominator with the conjugate (the conjugate is the same binomial but with the 2nd term negated) • 26:09 - Why do we want to multiply by the conjugate? • 29:13 - You Try Example with rationalizing denominator with the conjugate
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