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There are two possible answers because if you square a negative number, you will get a positive answer.

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โˆ™ 2011-10-05 21:22:10
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Q: Why is it there are 2 roots in a square root?
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Related questions

What is the square root of 2 square inches?

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

What is the square root of 4?

Original Answer:2 2The square root of 4 is 2.

What is the square roots of 4?

The square root of 4 is 2

Can to negative square roots ever be multiplied?

You must be careful when multiplying square roots of negative numbers; the same rules that apply for normal square roots do NOT apply. I will use shorthand root(x) for the square root of x. For example, root(2) x root(3) = root(2 x 3) = root(6), but you can't do this with square roots of negative numbers. For example: root(-2) x root(-3) = i root(2) x i root(3) = i2 root(6) = (-1) root(6) = -root(6). "i" is the imaginary unit.

What are the square roots of 2 and of 3?

The square root of 2 is 1.41421356, while the square root of 3 is 1.73205081. Hope this helps :)

Are all square roots rational numbers?

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.

What is square root of 4?

4 has two square roots. They are +2 and -2.

What is the square root of 106 in fraction form such as the square root of 125 is 5 square roots of 5?

root 2 x root 53

What number has only one square root?

Zero is the only number that has only one square root.The square root of zero is zero.All other numbers have two square roots.The square roots of 4 are 2 and -2. Two is referred to as the "principal" square root.When you get to the grade that discusses imaginary/complex numbers, you'll learn that negative numbers also have square roots. The square roots of -4 are 2i and -2i. 2i is the principal square root.

Arithmetic with square roots?

You can combine square roots when you multiply or divide. For example: root(2) x root(3) = root(6). You cannot do the same for addition and subtraction. For example, root(2) + root(3) can't be simplified.

What is the difference between perfect and nonperfect 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

Square root of 4x plus the square root of x?

square root of 4x is 2 times square root of x, so answer is square root of x times 3 since it is 2 square roots of x plus one of them

What is the square root of 7 times 2 square roots of 7?

it is 14.

What are the roots of the square root of 36x4?

The square root of 36 x 4 is 6 times 2, which is 12. The roots of 12 are +/-1, +/-2, +/-3, +/-4, +/-6, +/-12.

Are negative square roots rational or irrational?

If the positive square root (for example, square root of 2) is irrational, then the corresponding negative square root (for example, minus square root of 2) is also irrational.

What are square roots used for?

If you have a square root of a number, that means that your "square root" squared (multiplied by itself) will give you your original number. For example: * The square root of 4 is 2. * 2 x 2 is 4.

What do 1 4 and 9 have in common?

They all have square roots. Square root of 1 is 1 Square root of 4 is 2 Square root of 9 is 3

What is squared root?

I think you mean square root. The square root of a number is that number when multiplied by itself will give the original number. For example the original number is 4, then we know that 2 x 2 is 4, hence 2 is the square root of 4. We also know that -2 x -2 is also 4, hence 4 has two square roots, +2 and -2 Similarly 9 has two square roots, +3, and -3 Similarly 16 has two square roots, +4, and -4 Not all numbers have such whole numbers for their square roots. For example the square roots of 2 are nearly equal to +1.4142 and -1.4142. Similarly the square roots of 3 are nearly equal to +1.73205 and -1.73205

Are root 2 and root 3 rational or irrational?

The square roots of 2 and 3 are irrational but not transcendent.

Does any one have a list of Perfect square roots?

The perfect square roots are simply the counting numbers: 1, 2, 3, 4, and so on.The square root of 1 is 1, the square root of 4 is 2, the square root of 9 is 3, the square root of 16 is 4, and so on....See

How do you add square roots to other square roots?

Other than by calculating the square roots and adding the results there is no general method. However, by factorising the number (of which the square root is being taken), the square root can be simplified which may let the square root be added. Examples: √2 + √8 = √2 + √(4×2) = √2 + √4 × √2 = √2 + 2√2 (1 + 2)√2 = 3√2 √12 + √27 = √(4×3) + √(9×3) = 2√3 + 3√3 = 5√3 (Remember that the radical sign (√) means the positive square root.)

Why are square roots irrational?

Not always as for instance the square root of 16 is 4 which is a rational number but the square root of 2 is an irrational number.

What is the nonenegative square root of a number?

Every number has two square roots ... a positive one and a negative one. Example: +2 and -2 are both square roots of 4, because when you multiply either of them by itself, the answer is 4. The positive square root of a number is the square root that's not negative. The non-negative square root of a number is the positive one.

Every positive number has 2 square roots a square root and its opposite?

Yes, but it is not the case that one is the square root and the other is its opposite. Both are equal square roots with the other one being its opposite.

What is the square root of 4x?

We use the property of square roots that says the square root of (ab)=square root (a) multiplied by square root of b So square root (4x)=square root (4) mutiplies by square root of x =2(square root (x)) 2sqrt(x)