It is the principal square root.
Technically,no. A radical equation has a radical (Square root) in it, and has two solutions because the square root can be positive or negative.
using basic math principles, you can't find the square root of a negative number because in order for a number to be a square root, you have to multiply it by itself to get your radical. since a negative times a negative and a positive times a positive are both positive, it is impossible to find the square root of a negative number
a is a real number since we use just letters to represent real numbers. if a > 0, then its square root is also a real number, so it has two square roots, one positive and one negative. Be careful when you use the radical sign, because it is looking only for the principal square root of a, which is the positive one. if a < 0, then its square root is an imaginary number.
A square root
False
You cannot factor negative radical numbers because the square of a number must always be positive. A negative number multiplied by a negative number produces a positive number. So, it is impossible to have a negative radical.
The radical symbol ( √ ) followed by a line above what's in the radical, designates positive square root.
It is the RADICAL SIGN , its definition is - the symbol used to indicate a nonnegitive square root.
Technically,no. A radical equation has a radical (Square root) in it, and has two solutions because the square root can be positive or negative.
using basic math principles, you can't find the square root of a negative number because in order for a number to be a square root, you have to multiply it by itself to get your radical. since a negative times a negative and a positive times a positive are both positive, it is impossible to find the square root of a negative number
The square of a positive number is positive. By the way, the square of a negative number is also positive.
The square root (radical) of 5 is about 2.2361 (an irrational number)
When you square a real number the answer is positive,
If the number inside the radical is a perfect square or a ratio of perfect squares.
you have to square the outside number and then multiply it by the number inside the squareroot sign.
a is a real number since we use just letters to represent real numbers. if a > 0, then its square root is also a real number, so it has two square roots, one positive and one negative. Be careful when you use the radical sign, because it is looking only for the principal square root of a, which is the positive one. if a < 0, then its square root is an imaginary number.
4 radical 2