# Algebra 2: Chapter 5

## 24 terms

### monomial

expression that is a number, variable or product of a number and one of more variables.

### Constants

monomials that contain no variable, like 23 or -1

### Coefficient

numerical factor of a monomial

### Degree

sum or the exponents of its variables

### Power

expression of the form x^n

### Simplify

rewrite the expression without parentheses or negative exponents

### Standard Notation

for that you usually write numbers in

### Scientific Ntation

when it is in the for a x 10^n, where 1 </= a < 10 and n is an integer

### Dimensional Analysis

performing operations with units

### Polynomial

monomial or sum of monomials

### Terms

monomials that make up a polynomial

### Like Terms

terms with exactly the same variable factors in a variable expression

### Trinomial

polynomial with 3 unlike terms

Two unlike terms

### FOIL Method

a method used to multiply two binomials using the distributive property- the acronym stands for First, Outer, Inner, and Last terms

### Synthetic Division

simpler process for dividing a polynomial by a binomial

### Square Root

a number that when multiplied by itself equals a given number

### nth Root

The inverse of raising a number to the nth power is finding the nth root

### Principle Root

When there is more than one real root.

### Rationalizing the denominator

Multiply the numerator and denominator by a quantity so that the radicand has an exact root

If both the indices and radicands are alike