Q:
# What Is the Square Root of Four?

**The square root of 4 is +2 or -2.** The square root of a number can be either positive or negative. This is because the square of +2 is 4 and the square of -2 is also 4.

Similarly, the square root of 9 is either +3 or -3, and the square root of 16 is either +4 or -4. The square root of any number is obtained from the square of a number. If a number is a perfect square, then it has a perfect square root. Numbers, such as 1, 4, 9 and 16 are all perfect squares, hence they have a perfect square root. Numbers such as 2, 3, 5, 6 and 7 are not perfect squares; therefore, their square roots are not whole numbers.

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Q:
## What Is the Square Roof of 14?

A: The square root of 14 is 3.74166. A square root is simply a number that, when multiplied by itself, yields the product in question. With some numbers, this... Full Answer >Filed Under: -
Q:
## What Is the Fourth Root of 16?

A: The fourth root of 16 is 2. In mathematics, the fourth root of a number is a number r that yields z when raised to power 4, where 4 is the degree of the ro... Full Answer >Filed Under: -
Q:
## How Do You Factor (x^2-2x-4)?

A: The expression (x^2 - 2x - 4) factors as (x + 1 - sqrt(5))*(x + 1 + sqrt(5)), where sqrt(5) is the square root of 5. This quadratic polynomial is factored ... Full Answer >Filed Under: -
Q:
## What Is a Double Root in Algebra?

A: A double root occurs when a second-degree polynomial touches the x-axis but does not cross it. Both ends of the parabola extend up or down from the double ... Full Answer >Filed Under: