Maths help: What is the square root of 4

pls help, homework, if i dont do it, my professor will expel me from my university

You're in university studying Mechanical Engineering (2nd year)
and you're asking this question???

Are you serious?

Mathematically answer is 2 (not 2 or -2)
Do not take negative root unless explicitly stated (as in -√4 = -2)
That's why quadratic formula contains ± √, and not just + √

i do hope you're too young to memorize square roots of usual simple numbers..because people will really think you are dumb if you're a lot older..so here's the answer..the square root of 4 is +2 or -2..there are always two numbers you should get in getting a square root of a number..the positive and the negative..remember that getting the square root it getting the number that if you square it,.you will get the number that you are looking of the square root..that's why 2 is the answer for the square root of 4 because when you square 2,.you'll get 4..-2 is also included because when a negative number is squared it becomes positive..so -2 is also an answer..though calculators usually just consider the positive number as an answer..also remember that negative numbers do not have square root..ok?.:D

ummm...carry the 6...times q^3...round up...I got it!

867-5309

*koolaid man voice* OH YEAH!!!

Yes, the answer is 2. Not sure why people bother answering when they're clearly trying to be less than helpful. (although I expect if you're in university and don't know this, the question itself may be less than sincere)

you're kidding me? a university and you don't know square root of 4? this is a joke .. haha .. well the answer is 42 .. it's the meaning of life, the universe, and of everything :)

square ROOT is
+2 or -2
Pokerfling is wrong. Sorry pokerfling.

Don't listen to these answers, they're trying to throw you off.
The REAL answer is 2.1410469503576x10^-660

Relax, the answer is 17.

see my source and next time search first

2...

I don't know how the other people are getting their numbers but the square root of 4 is 2

16

The answer is sixteen.

It's a trick question, squares don't have roots.

e=mc^2... hey, don't tease him. Einstien worked hard to prove this!

Erm...42 ?

It's 19, best answer please?