Download 1.8 Expressions - Like Terms What is an

1.8
Expressions Like Terms
Objectives:
- To identify terms, like terms, coefficients, and constant terms
of an expression.
- To simply expressions with like terms.
What is an expression?
22a - 2
5x
000
-4
2a + 3
-2
m
m+2
12a
+5-
b - 5a
+7
- 7m
3+
2
Term - A single number of variable,
or the product of several
numbers and variables, separated
from another term by a
_________ or ________ sign.
Constant - a
______________
by itself.
Like Terms - terms
that have
_______________
variable parts.
Coefficient - the number
__________________ of a
variable.
5x + 4x + 7
Identify the terms, like terms, coefficients, and constant
terms of the expression
1. y + 8 - 5y - 3
2. 13c - 4 - 5c - 6
Simplifying Expressions
1. Combine the ____________ terms.
- If they have variables:
*keep the _______________ the same.
* add the ______________.
- If they are constants:
* Add the constants
Simplify.
1. 4n - 7 - n + 9
2. 12k - 9 - 7k + 20
2x + 4 - 5x +3
Simplify.
1. 2(x + 4) + 9x + 1
2. 5(6 + b) + 4b - 9
Simplify.
1. 3k - 8(k + 2)
2 4m + 12 - 3(2m + 2)