2
Chapter
witing
1
↳
(b)
.
&
known
45
45
+
of
times
8
↳
of
x
works
.
expression
an
(a) sum
Algebra (in-class
:
number
unknown
an
.
8X
(3) Squared
13x2
13
multiplied by
unknown
:
↳
2
.
Simplify
c)
:
-91x
(4xx)
(b)
-
x
(C) SumoCD
-
Li
If
CD
(D
+
DVD
$110
Y
If
DVD
+
->
:)
3)
+
=
(2
=
x
x
2x
4 x x)
+
=
It
DVD
&
$10
cost
x
=
=
is
3y
cost
X
+
what
,
z
more
=
does DVD
than
xx
E
cy
:
cost?
>
-$10
↳=
>
3 times
dollars
>
?
3
:
substitution
a
(i)
=
D
-
b
3
+
5
=
⑰5)
c
-
b
(iii)
2
.
Simplifying
(i)5
=
2
=
165) nat
=
=
a
5- -
2
:
3
+
-2x
(ii)
(ii)
2
+
3
462532
(iiS
c
-
24
3x
-
=
xy(5x+3x 2)
:
-
4
-
2x- 3x2
15y-2/Ty 6xy-2
=
-
(iv)
12x2
#>⑦
-
4x
+
2x2
=>
=
4x(3x
-
1)+ 2x