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Supplementary Course Module B: Algebraic Expressions
Terminology:
Algebra uses symbols [ usually letters ] to represent quantities which are unknown or which can vary.
divided together.
For example, the term
3
x
is made of the coefficient "
3
" multiplied with the variable
x
; the term
a
2
b
3
c
is
comprised of the coef²cient "
1
" and variables
a
,
b
and
c
.
ab
=
ba
.
5
xy
,
±
1
2
xy
and
p
3
yx
are all like terms;
5
x
2
y
and
5
xy
2
are not like terms, as the ²rst has two
factors of
x
and one factor of
y
as its variable part, whereas the second term has one factor of
x
and two
factors of
y
.
x
, is an algebraic expression having the following form:
a
n
x
n
+
a
n
1
x
n
1
+
²²²
+
a
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This note was uploaded on 11/25/2010 for the course MATH MA110 taught by Professor Hu during the Spring '10 term at Wilfred Laurier University .
 Spring '10
 HU
 Algebra, Exponents

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