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Workbook

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Example 4: If x 0 and y 0, then express x  y  x 2 in simplest form.

Example 5: If a 0  b  1, then express a  b  b  2 b  1 in simplest form.
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Example 6: If a 0 and b 0 , then express (b  ) a 2  2 ( a  ) b 2 .

Example 7: Solve x 2  8 x 16  5  ( ) 3 2 for x .

Example 8: If y 2  x 2  2 x 1  0 , find the values of x and y .

Properties of Square Roots:

I. Product property : a.b  a. b and a 2 b .  . a b where a 0and b 0

Example 9: Find the results of the following operations

62 091math-wb-w6-(equations&inequalities-1)