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If "a" is positive,

it will have two fourth roots, one will be positive and one will be negative

it will have one fifth root, which will be positive.

If "a" is negative,

it will have one fourth root, which will be negative.

it will have one fifth root, which will be negative.

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Q: How does the sign of a determine the number of real fourth roots of a and the number of real fifth roots of a?
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What are the fourth roots?

Square roots of square roots. The fourth root of a number, x, is another number, y such that y*y*y*y = x ie y multiplied by itself 4 times is x.


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There is an infinite amount of roots. You can have a square root, a cube root, a fourth root, a fifth root, and so on. The answer will slowly get smaller, but there is still a number that multiplies two times, three times, four times, five times, etc. of itself to get a number.


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HOW to take out fourth square root of a NUMBER?

The fourth square root is the 16th root of a number. On a computer, to find the 16th root of a number, say 5.6, enter 5.6^(1/16). If the number you start with is positive, you will have 2 real roots (one positive and one negative) and 14 complex roots. If it is negative, you will have 16 complex roots.


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How do you simplify fourth roots?

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