Algebra I - Chapter 4
4.1 Exponents
Exponents
N 4 = Remember that the power just deals with the variable in front of
it.
MN2
(MN)2
Let’s Try Some:• Evaluate if a = 3 and b = -2
ab – a2
a3 + 2b3
Vocabulary:• 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
More Vocabulary: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
Vocabulary:• The degree of a monomial is the sum of the
exponents of it variables – the degree of a constant is zero
Even More Vocab!• 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