+644
The square root of a number has two answers. amirite?
by Anonymous13 years ago
No. Example: the square root of 4 is +/-2
by Anonymous13 years ago
exactly, 2 and -2, two different answers
by Anonymous13 years ago
But you always forget, and end up with only half the answer to your equation
by Anonymous13 years ago
no, the square root of a number is always the positive
i.e. if x is the square root of 4, then x is 2.
however, if you state that x squared is 4, then x can be both +/- 2.
so you have to be careful!
my teacher marked me off on a test because of that once
by Anonymous13 years ago
Exactly, it's only when you are trying to solve an equation. If it's just simply: What is the square rooot of 4, then the answer is 2. If it's: X^2=4, then the answer is X = +/-2.
by Anonymous13 years ago
what about -1? or any negative number.
There's just i.
by Anonymous13 years ago
you forgot -i
by Anonymous13 years ago
WELL PLAYED.
by Anonymous13 years ago
negative numbers don't have square roots
by Anonymous13 years ago
u can actually square root a negative number...by using complex numbers. what do u people learn in school? seriously.
by Anonymous13 years ago
and plus there are no two real numbers that when mutiplied equal a negative number
by Anonymous13 years ago
and plus there are no two real numbers that when mutiplied equal a negative number
by Anonymous13 years ago
exactly, there is no square root of a negative number :D
by Anonymous13 years ago
no REAL square root.
by Anonymous13 years ago
It doesnt SAY REAL
by Anonymous13 years ago
Two real numbers when multiplied that equal a negative number? -3 x 2 = -6...
Or am I not understanding your comment? Sorry if I'm not
by Anonymous13 years ago
Since when is this an opinion?
by Anonymous13 years ago
it's summer. can we please not talk about this?
by Anonymous13 years ago
Amen!
by Anonymous13 years ago
The square root of a number only represents the positive number. x^2=4 has 2 answers: +/-2. But the square root of 4 is only 2.
by Anonymous13 years ago
WHY ARE WE TALKING ABOUT MATH ON THE INTERNET DURING SUMMER?
JUST WONDERING.
by Anonymous13 years ago
It's not summer everywhere, idiot. And some people enjoy maths.
Also, I think you might have bumped your caps lock key.
by Anonymous13 years ago
square root of any positive number has two answers, like square root of 4 is 2 and -2, as -2X-2=4 and 2X2=4
for negative integers you have to use imaginary numbers, the square root of -4 is 2i and -2i. but you only need to start worrying about square rooting negative numbers if you are continuing maths to a higher level than just year 11 and GCSE's
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