Polynomials

Explanation

A polynomial is an expression made up of variables, coefficients, and exponents that are whole numbers.

General form:
aₙxⁿ + aₙ₋₁xⁿ⁻¹ + … + a₁x + a₀

Rules for polynomials:

• Exponents must be whole numbers (0, 1, 2, 3, …)

• No variables in the denominator

• No square roots of variables

Examples of polynomials:

• 3x² + 2x − 5

• x³ − 4x

• 7

Not polynomials:

• 1/x

• x⁻²

• √x