what are the different square roots of 49

Go with Anonymous's answer because 

not only is 7 an answer because (7)(7) = 49

but also -7 is an answer because (-7)(-7) = 49      

         (a negative number times a negative number has a positive anwer).

There is only one square root of 49........that would be 7

-7 and 7          

There is only one square root of 49 that's 7.its like

√7=49

or

7*7 = 49

geno, you can never square root a number and get a negative

ok there is a lot of confusion here so I will see if I can help to straighten it out for it is quite important.

Firstly  7*7=49     AND    (-7)*(-7)=49

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Now if the question is  $$\sqrt{49}$$   then the answer is 7     (Just 7 NOT -7)  

This is because if the square root is written into the original question ONLY the positive answer counts.  That is a convention. 

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However,  if the question is   

$$\\x^2=49 \qquad find\quad x \\\\
$That is different because the square root is not written into the original question.$\\\\
x=\pm\sqrt{47}=\pm7$$

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Please, if you want to ask questions do so because this is important.

The convention is that we assume the positive root, unless we are solving an equation...

So.... √49 = 7

But

x² = 49

x = ±√49 = ± 7