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Treat it like a positive and add an i.

Explanation: The square root of negative nine is equal to the square root of nine times negative one is equal to the square root of nine times the square root of negative one. The square root of negative one represented by an italic lower case i. The square root of negative nine is 3i.

√-9 = √9 * -1 = √9 * √-1 = 3i

Q: How do you do square roots with negatives?

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No. Lots of square roots are not rational. Only the square roots of perfect square numbers are rational. So for example, the square root of 2 is not rational and the square root of 4 is rational.

No. Square root of 9=3. 3=3/1. Therefore not all square roots are irrational

any number (including fractions, square roots and Pi) that are not 0 and are not square roots of negative numbers.

1, 2, 3, 4, and their negatives.

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Related questions

The square roots of 9 are +3 and -3. The integers of their negatives are -3 and +3 respectively.

Any positive number has two square roots, a positive square root and its negative equivalent. This is because two negatives multiplied together equal a positive. In this instance, sqrt(625) = Â±25 (that is, 25 and -25).

(-5)^2 = (-5)(-5) = 25 The negatives cancel one another out.

They can, but they are called imaginary numbers. This is because a "square" of something is the number that, when multiplied by itself, will equal the first number. A negative multiplied by a negative equals a positive, and positives can't turn into negatives on their own, so there are no square roots of negative numbers.

The square roots are -1.07 and +1.07The square roots are -1.07 and +1.07The square roots are -1.07 and +1.07The square roots are -1.07 and +1.07

square inches do not have square roots only number have square roots.

Perfect square roots are square roots that have a whole number that can go into it perfectly. Nonperfect square roots are square roots that have decimal numbers going into it. Example: Perfect Square Root: 144- Square Root: 12 Nonperfect Square Root: 24- Square Root: About 4.89

Negative numbers do not have square roots. Multiplying any number by itself will always be a positive number. For example, -1 x -1 is 1. Because two negatives cancel themselves out, and regular numbers are always positive.

No. The square roots 8 are irrational, as are the square roots of most even numbers.

The square roots of 64 are +8 and -8.

You call them principal square roots.

The square roots of 8100 are 90, -90