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Algebra I - Chapter 4

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Algebra I - Chapter 4

4.1 Exponents

N 4 =

Remember that the power just deals with the variable in front of it.

MN2

(MN)2

- Evaluate if a = 3 and b = -2
ab – a2

a3 + 2b3

- A monomial is an expression that is a number, a variable, or the product of a number and one or more variables
They cannot contain variables in denominators,

variables with exponents that are negative, or

variables under radicals

- Constants are monomials that contain no variables
- The numerical factor of a monomial is the coefficient of the variable

A Polynomial is a monomial or a sum of monomials

The monomials that make up a polynomial are called the terms of the polynomial

Like terms are the ones that can be combined

- The degree of a monomial is the sum of the exponents of it variables – the degree of a constant is zero

- Binomials (two terms)
- Trinomial (three terms)
- The degree is the degree of the monomial with the greatest degree

Tonight’s Homework:

Page 144 (24-31)(40-43)

Vocab Quiz next class – 4.1-4.2