M
ATH
9
S
ECTION
5.2
L
IKE
TERMS
& U
N
-
LIKE
T
ERMS
©Copyright All Rights Reserved to Homework Depot at www.BCMath.ca
L
IKE
T
ERMS
Two terms are considered “like-terms” if:
1) They have the same variables
2) The exponents for the corresponding variables are the
same
Ex: State whether if each pair of terms are liketerms
YES
YES
YES
NO
NO
NO
YES
YES
©Copyright All Rights Reserved to Homework Depot at www.BCMath.ca
II) C
OMBINING
L
IKE
-T
ERMS
You can only add or subtract two terms if they are liketerms
If they are not liketerms, then you can not add or subtract
them
Ex: Add or Subtract the following terms:
Which ones are liketerms??
©Copyright All Rights Reserved to Homework Depot at www.BCMath.ca
E
X
: U
SE
ALGEBRA
TILES
TO
MODEL
EACH
POLYNOMIAL
THEN
COMBINE
LIKE
TERMS
. S
KETCH
THE
TILES
©Copyright All Rights Reserved to Homework Depot at www.BCMath.ca
E
X
: S
IMPLIFY
EACH
P
OLYNOMIAL
Combine liketerms
Rearrange all the terms from
highest to lowest degree
There are NO liketerms!!!
So just rearrange the terms
©Copyright All Rights Reserved to Homework Depot at www.BCMath.ca
C
HALLENGE
: G
IVEN
THAT
THE
EXPRESSION
IS
EQUAL
,
WHAT
ARE
THE
VALUES
OF
COEFFICIENT
A
AND
B?
©Copyright All Rights Reserved to Homework Depot at www.BCMath.ca
C
HALLENGE
#2) A
DDITION
P
YRAMID
In the addition pyramid below, each box is the sum of the two box
directly beneath it. Complete each addition box by finding an
expression for all the boxes or finding the value of the missing
expression “C”.
©Copyright All Rights Reserved to Homework Depot at www.BCMath.ca
H
OMEWORK
:
P222 #1-3, 6, 8-10,11-13(ace)
©Copyright All Rights Reserved to Homework Depot at www.BCMath.ca