The square root of a number is one that can be multiplied by itself to make the original number, i.e. x*x=x^2.

The only number that equals 144 when multiplied by itself is 12, but negatives cancel each other out when they are multiplied, also giving the answer of a negative number, -12. The answers are 12 and -12.

Square root of x = x * x

So square of 12 and square of -12 = 144

However square root is always positive number hence Square root of 144 is 12.

Sqrt(144) = 12

sqrt is the same as asking what number multiplied by itself would give you the number you're square rooting.

Hope I helped

There are two square roots of 144. The principal square root is 12. The negative square root is -12.

...The square root of 144 is 12 because 12x12=144. So by definition, the square root of 144 is 12.

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