# Algebra 2 CP - Chapter 5 Vocabulary

## 18 terms

### absolute value

The distance a number is from zero on a number line

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### binomial

a polynomial with two terms

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### coefficient

number in front of a variable

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### complex number

a number of the form a+bi where a and b are real numbers and i is the square root of -1

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### conjugates

the expressions a+√b and a-√b where a and b are rational numbers

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### constant

a quantity that does not vary

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### degree

the highest power of a term or variable

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### extraneous solution

a solution that does not satisfy the original equation

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### monomial

a number, a variable, or a product of a number and one or more variables

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### polynomial

a monomial or a sum of monomials

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### power

a mathematical notation indicating the number of times a quantity is multiplied by itself

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an equation that has a variable in a radicand or has a variable with a rational exponent

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### scientific notation

A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.

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### simplify

To make a fraction easier to work with by taking out common factors. In an expression, combining variables that have like unknowns.

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### square root

a number that when multiplied by itself equals a given number

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### terms

values in a mathematical sentence that are seperated by an addition or subtration sign

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### trinomial

a polynomial with three terms

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