Adding and Subtracting Square Ro
Adding and Subtracting Square Roots
9.4 Adding and Subtracting Square Roots 
Example 1 Simplify.

Example 2 Simplify the square roots, then combine like radicals.
Example 3 
Example 4 Simplify the square roots , then combine like radicals .

Example 5 Explain the mistake, then simplify correctly.
Example 6 
Example 7 Multiply .
Example 8 
Example 9 Multiply.
Example10 
Rationalizing a Denominator Containing a Sum
or Difference Multiply the numerator and denominator by the conjugate of the denominator . Example 11 
Example 12 Rationalize the denominator and simplify .

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