Find all possible square roots.
Square root 400
1. 20 or -20
2. 18 or -18
3. 16 or -16
4. 14 or -14
The square root of 400 is 20 or -20.
To find all possible square roots of 400, we can take the positive and negative square roots of 400.
1. The positive square root of 400 is 20 (because 20*20 = 400), and the negative square root of 400 is -20 (because -20*-20 = 400).
2. The positive square root of 400 is 20, and the negative square root of 400 is -20.
3. The positive square root of 400 is 20, and the negative square root of 400 is -20.
4. The positive square root of 400 is 20, and the negative square root of 400 is -20.
So, the possible square roots of 400 are 20 and -20.
To find all possible square roots of a number, you need to determine both the positive and negative values that, when squared, result in the original number.
In this case, we are looking for the square root of 400.
One method to find the square root is to use a calculator that has a square root function.
By inputting 400 into the calculator and pressing the square root button, you will receive the positive square root value of 20. This is because 20 x 20 = 400.
To find the negative square root, simply multiply the positive square root by -1. This means that the negative square root is -20, as -20 x -20 = 400.
So, the two possible square roots of 400 are 20 and -20.
As you mentioned additional options, it seems that you made an error in finding the square roots.
To clarify, the other options you provided (18, -18, 16, -16, 14, and -14) are not the correct square roots of 400.