ok there is a the majority of confusion below soIwill view if Ican assist to straighten it out for that is fairly important.

You are watching: What is the square root of 49

Firstly 7*7=49 and also (-7)*(-7)=49


Now if the concern is $$\sqrt49$$ climate the prize is 7 (Just 7 NOT -7)

This is since if the square root is written into the initial question only the optimistic answer counts. That is a convention.


However, if the concern is

$$\\x^2=49 \qquad find\quad x \\\\ $That is different because the square root is not written into the initial question.$\\\\ x=\pm\sqrt47=\pm7$$


Please, if you desire to asking questions execute so since this is important.

Melody Jan 8, 2015

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

So.... √49 = 7


x2 = 49

x = ±√49 = ± 7

CPhill Jan 8, 2015
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