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Variable: Late Middle English, via Old French from Latin variabilis, from variare. See 'vary'.

Vary: Middle English: from Old French varier or Latin variare, from varius 'diverse'.

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Q: What is the root of variable?

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That will depend on the value of the unknown variable

Variable, or if you're a purist - vary.

It is the solution or root of the equation.

Replacing the variable in the denominator by a root of the denominator.

A polynomial is an expression of various exponentials of a variable wich may or may nor have coefficients and constants. The coefficients may have a radical, square root, cube root etc, but not the variable. A radical expression is any expression involving square roots, cube roots, etc. These may have the variable inside the radical but do not have to have them. sq root (5) is a radical expression, so is sq root (x) 3x2 + 2x - 9 is a polynomial, so is x + sq root (5)

Related questions

That will depend on the value of the unknown variable

variable

Dependent Variable - Note the root word DEPEND. So a dependent variable is when on variable depends on/affects the other.

a variable

Variable, or if you're a purist - vary.

factor it

A value of the variable when the polynomial has a value of 0. Equivalently, the value of the variable when the graph of the polynomial intersects the variable axis (usually the x-axis).

It is the solution or root of the equation.

Replacing the variable in the denominator by a root of the denominator.

A polynomial is an expression of various exponentials of a variable wich may or may nor have coefficients and constants. The coefficients may have a radical, square root, cube root etc, but not the variable. A radical expression is any expression involving square roots, cube roots, etc. These may have the variable inside the radical but do not have to have them. sq root (5) is a radical expression, so is sq root (x) 3x2 + 2x - 9 is a polynomial, so is x + sq root (5)

A value of the variable that makes the polynomial equal to zero (apex)

Such a value is called a "solution" or "root" of an equation.