ok over there is a the majority of confusion below soIwill check out if Ican assist to straighten it the end for that is quite important.

You are watching: What is the square root of 49

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


Now if the inquiry is $$sqrt49$$ then the answer is 7 (Just 7 NOT -7)

This is due to the fact that if the square root is written right into the initial question only the optimistic answer counts. That is a convention.


However, if the inquiry is

$$\x^2=49 qquad findquad x \\ $That is different since the square root is no written right into the initial question.$\\ x=pmsqrt47=pm7$$


Please, if you want to asking questions execute so because this is important.

Melody Jan 8, 2015

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

So.... √49 = 7


x2 = 49

x = ±√49 = ± 7

CPhill Jan 8, 2015
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