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A beginner friendly summary of polynomials.
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These notes show good examples and are broken up into different sections to help better understanding. It can be used by complete beginners to polynomials.
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Polynomials.Polynomials: An Introduction for Beginners
1. What are Polynomials?
Polynomials are mathematical expressions consisting of variables
(usually represented by letters) and coefficients (numbers
multiplied by the variables), combined using addition, subtraction,
and multiplication operations. They are fundamental objects in
algebra and are used to represent various real-world phenomena.
2. Components of a Polynomial:
Variables: These are symbols that represent unknown
quantities and are typically denoted by letters such as x or
y.
Coefficients: These are the constants multiplied by the
variables. Coefficients can be any real number, including
integers, fractions, or irrational numbers.
Degree: The degree of a polynomial is the highest power of
the variable present in the expression. For example, in the
polynomial 3x2−2x+5, the highest power of x is 2, so the
degree of the polynomial is 2.
3. Types of Polynomials:
Constant Polynomial: A polynomial with no variable term,
only a constant term. Example: 5.
Linear Polynomial: A polynomial of degree 1, meaning it
has one variable raised to the power of 1. Example: 3x+2.
Quadratic Polynomial: A polynomial of degree 2, meaning
it has one variable raised to the power of 2. Example:
2x2−4x+1.
Cubic Polynomial: A polynomial of degree 3, meaning it
has one variable raised to the power of 3. Example:
x3+2x2−x−3.
Higher-Degree Polynomials: These are polynomials of
degree greater than 3. They can have various forms and
may involve multiple terms.
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