Anonymous4

95% agree
5% disagree

## Favourited

The square root of a number has two answers. amirite?

## Top Comment

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

#### Anonymous

No. Example: the square root of 4 is +/-2

#### In response to “No. Example: the square root of 4 is +/-2”

exactly, 2 and -2, two different answers

#### Anonymous

But you always forget, and end up with only half the answer to your equation

#### Anonymous

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

#### In response to “no, the square root of a number is always the...”

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.

#### Friday_Night_Lights

what about -1? or any negative number.
There's just i.

you forgot -i

#### In response to “you forgot -i”

WELL PLAYED.

negative numbers don't have square roots

#### In response to “negative numbers don't have square roots”

u can actually square root a negative number...by using complex numbers. what do u people learn in school? seriously.

#### Anonymous

and plus there are no two real numbers that when mutiplied equal a negative number

#### Anonymous

and plus there are no two real numbers that when mutiplied equal a negative number

#### In response to “and plus there are no two real numbers that...”

exactly, there is no square root of a negative number :D

#### In response to “exactly, there is no square root of a...”

no REAL square root.

#### In response to “no REAL square root.”

It doesnt SAY REAL

#### In response to “and plus there are no two real numbers that...”

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

#### betofourtwenty

What about zero? There ya go.

#### shaanarora

Since when is this an opinion?

Amen!

#### Likeaboss

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.

#### dodobird

WHY ARE WE TALKING ABOUT MATH ON THE INTERNET DURING SUMMER?

JUST WONDERING.

#### In response to “WHY ARE WE TALKING ABOUT MATH ON THE INTERNET...”

It's not summer everywhere, idiot. And some people enjoy maths.

Also, I think you might have bumped your caps lock key.

#### Anonymous

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

#### Math<3

^^^^ bunch of nerds haha just sayin...

## Sort comments by: Replies Date Score Loves

Amirite is the premier opinion-based social network where people from all around the world discover, debate and discuss today's hottest issues. Share your perspective to the world and interact with like-minded individuals on breaking news, hot topics and controversial issues now!

With that many angles, the discussions on Amirite will open your eyes to a panoramic view of your world that you won't get anywhere else, allowing you to see the big picture and discuss it.

Every opinion matters on Amirite.