By, Mrs. Muller. This is the Radical Sign 3 This is the Index: When there is no number, it is a 2 4 This is the Radicand.

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Presentation transcript:

By, Mrs. Muller

This is the Radical Sign 3 This is the Index: When there is no number, it is a 2 4 This is the Radicand

 Square roots make perfect squares.  For example 16 would be a perfect square as illustrated below: There are 16 squares, to make it into a perfect square it would have to be 4 by 4, 4 2 would be 16: The square root of 16 would be 4

 The inverse operation of squaring a number is finding the square root.  The square root is a number that when multiplied by itself is equal to the original number.  5 2 = 25 and (-5) 2 = 25  So  25 = 5 or -5

81 First Think, what number multiplied by itself would equal 81 Think of the numbers that multiply to make 81 The only number is 9 so your answer is 9 or-9 Because 9x9=81 and -9x-9=81