Download 1.3 Algebraic Expressions

1.3 Algebraic Expressions
Goals:
~Evaluate algebraic expressions
~Simplify algebraic expressions
Simplify:
12 + 24 ÷ 6 ∙ 2
Order of Operations
Please
Excuse
My
Dear
Aunt
Sally
Exponents and Powers
Evaluate 34
Exponents and Powers
Evaluate 34
4 is the _______________
3 is the _______________
Power is the product of equal factors.
Exponents and Powers
What is the difference between
(3x)2
and
3x2
Simplify these numeric expressions
6 ÷ 3 ∙ 23 + 9
(6 ÷ 3 ∙ 2)3 + 9
(6 ÷ 3) (23 + 9)
6 ÷ (3 ∙ 23) + 9
Term
► Part
of an expression.
► Can be a number, variable, or product of
one or more numbers or variables.
Coefficient
► Number
in front
► Numerical factor of a term
Like Terms
► Same
variable raised to same power
► 3x2 and -6x2
► -5a2b3 and 10a2b3
► NOT
LIKE TERMS: 10x2y and -5xy2
Combine Like Terms
► Combine
coefficients
► Use the same variable and coefficients
Combine Like Terms
1.) 3k – k
2.) 5z2 – 10z – 8z2 + z =
3.) -(m – n) + 2(m – 3n) =