I do not see the figure.

]]>Look the link you provided at page 4 concerning the square roots signs.

It says so:

When two numbers are multiplied within a square root, you can split it into a multiplication of two square roots.

But only when X and Y are both greater than or equal to 0.

My question is:

Which figure is equal to zero before the splitting will be possible?

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But when 9 is in a square root sign it gives two answers i.e -3 and 3.

I wanted him to be sure that the answer is only 3. 1 answer not 2.

]]>But when 9 is in a square root sign it gives two answers i.e -3 and 3.

if the positive number is the principal square root what name is also given to the -3?

√(-3) is complex or imaginary.

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