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SIMPLIFYING SQUARE ROOTS EXAMPLES (简化平方根的例子)
SIMPLIFYING SQUARE ROOTS EXAMPLES
1. Definition of a “simplified form” for a square root The square root of a
positive integer is in “simplest form” if the “radicand” has no perfect square
factor other than one.
2. Have students analyze the following to see if it is true or false: (ALL ARE
TRUE.)
40 4 •10 4 • 10 2 10 Product
Property of
Square Roots
3.
For any numbers “a” and “b,” where
a ≥ 0 and b ≥ 0, ab a • b .
4. Example: Simplify 72
The Product Property of Square Roots and prime factorization can be used to
simplify radical expressions in which the radicand is not a perfect square.
72
2 •2 •2 •3 •3 Prime factorization
2 • 22 • 32
Product Property 2 •2 •3
6 2
5. Example: Simplify 150
The Product Property of Square Roots and prime factorization can be used to
simplify radical expressions in which the radicand is not a perfect square.
150
2 •3 •5 •5 Prime factorization
2 • 3 • 52
Product Property 2 •3 •5
5 6
Johnny Wolfe Jay High School Santa Rosa County Florida August 11, 2001
6. When finding the positive square root of a
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