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The answer to square root of 9 for example, is 3 and -3... When you multiply 3 times -3 it comes out to be 9

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Q: Why does each square root have 2 solutions?
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Related questions

How long is each side in a square that the area is 2 feet?

root 2 root 2 * root 2 = 2 2 = area of the square.


Is it possible to have a square root as a solution to a quadratic equation?

Yes. For example, the equation x2 = 2, which in standard form is x2 - 2 = 0, has the two solutions x = square root of 2, and x = minus square root of 2.


Choose the quadratic equation with a leading coefficient of 1 that has as solutions -2 plus 3 square root 5 and -2 -3 square root 5?

x2 + 4x = 41


How do you get rid of unknown squared?

You can take the square root on both sides of the equation. Some knowledge and practice is required to do this correctly; solutions may get lost if you are not careful. To take a simple example, x2 = 4 has two solutions, namely, x = 2, and x = -2. Once you take the square root on both sides, you have only one solution, namely, x = 2. When taking a square root in this case, you should write, x = plusminus 2.You can take the square root on both sides of the equation. Some knowledge and practice is required to do this correctly; solutions may get lost if you are not careful. To take a simple example, x2 = 4 has two solutions, namely, x = 2, and x = -2. Once you take the square root on both sides, you have only one solution, namely, x = 2. When taking a square root in this case, you should write, x = plusminus 2.You can take the square root on both sides of the equation. Some knowledge and practice is required to do this correctly; solutions may get lost if you are not careful. To take a simple example, x2 = 4 has two solutions, namely, x = 2, and x = -2. Once you take the square root on both sides, you have only one solution, namely, x = 2. When taking a square root in this case, you should write, x = plusminus 2.You can take the square root on both sides of the equation. Some knowledge and practice is required to do this correctly; solutions may get lost if you are not careful. To take a simple example, x2 = 4 has two solutions, namely, x = 2, and x = -2. Once you take the square root on both sides, you have only one solution, namely, x = 2. When taking a square root in this case, you should write, x = plusminus 2.


What is the square root of the square root of 2?

The square root of the square root of 2


Can you square a square root?

Yes, the whole idea of taking the "square root" of a number is, for example for the square root of 2, to find the number that, when squared, gives you 2. if you try to do both, they cancel each other out.


What single digit number is both the square root and divisible of another single digit number?

There are two solutions to the question:- 2 & 3 2 is the square root of 4 - and a factor of 4 (and 8) 3 is the square root of 9 - and is also a factor of 9


If figure ABCD is a square with sides that measure four and efg and h are the midpoints of the sides of abcd what is the area of square efgh?

If each side of ABCD is four then the midpoints divide each side in half, or two. If you draw the square efgh, each side is 2 times square root 2 from Pythagorean theorem. sqrt (2 sq + 2 sq) =2 square root 2. the area is the sides squared or 2 root 2 times 2 root 2 = 4 x 2 = 8


What is the square root of 2 squared?

The square root of 2 squared is 2. sqrt(22)=2 The square root function and the exponent 2 and opposite function and cancel each other out. 22=4 sqrt(4)=2 =>sqrt(22)=2 What is the (square root of 2) squared - If you take the square root of a number then square it the answer is the number itself, so the answer is 2! What is the square root of (2 squared) - Looking at the question another way, if you take a number and square it, the square root of the resulting answer is the number itself, so the answer is 2! Unless, of course, this is a trick question . . . ivj


What is 4 square root of 2 minus 2 square root of 2?

2 square root 2


Square root 2 times square root 3 times square root 8?

square root 2 times square root 3 times square root 8


What is the square root of 2 plus the square root of 2 in square root form?

The square root of 2 plus the square root of 2 is equal to twice the square root of 2, therefore the correct answer is: 2(√2) or √8