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we have <math>m^2</math>=mxm or (-m)x(-m)=<math>(-m)^2</math> thus <math>m^2</math> has 2 square roots, m;m and m example 9=<math>3^2</math> or <math>(-3)^2</math>.thus both 3 and -3 or <math>\sqrt9</math>
 
we have <math>m^2</math>=mxm or (-m)x(-m)=<math>(-m)^2</math> thus <math>m^2</math> has 2 square roots, m;m and m example 9=<math>3^2</math> or <math>(-3)^2</math>.thus both 3 and -3 or <math>\sqrt9</math>
 
[[File:square number.png|200 px|left]]      <br>    This shows pictorial representation of squares and  square roots
 
[[File:square number.png|200 px|left]]      <br>    This shows pictorial representation of squares and  square roots
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= Textbook =
 
= Textbook =
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