Question

Square of a negative number?

Answer 1

If we find the square of a negative number, say -x, where x > 0, then (-x) × (-x) = x 2. Here, x 2 > 0. Therefore, the square of a negative number is always positive.

Answer 2

The answer is:

below

Work/explanation:

The square of a negative number is always a positive number :

`\sf{(-a)^2 = b}`

where b = the square of -a

The thing is, the square of a positive number is equal to the square of the same negative number :

`\rhd\phantom{333} \sf{a^2 = (-a)^2}`

So if we take the square root of a number, let's say the number is 49 - we will end up with two solutions :

7, and -7

This was it.

Therefore, this is the answer.