can be
away
A
I. simple
mar mot be
2. brackets
µ
tantamount
3. fractions
4 .
I .
quad formula
K method
5 2
completing the square
-
. .
ax
>
+ bxtc=0
I.
simultaneous
, simple
L
E
= a QV
1 .
JC2 =
63C § E
SC2-6OC =
0 •
everything on LHS →
descending powers +
leading term positive
✗ (x -
67=0 .
count the people →
z
→
CF
✗ =0 Or 3C -6=0 A- 13=0
•
✗ =b A :O Or 13=0
2
2 .
23C = -
✗
JC21-2JC =0
Ibct 21--0
1=0 or ✗ =
-2
method 1 method 2
✗ 2=9
'
3 .
9 -_
I
-
xita=o x=±fg
✗ 2-9=0 ✗ =3 Or D= -3
1×-311×1-31=0
✗ =3 Or ✗ =-3
2
4 . I -6 = ✗
-
✗ 2+21-6=0
2-
✗ ✗ -6=0
1×-311×+21=0
✗ =3 Or ✗ =
-2
truckers
.
(-2×-111×+2)=-5 •
expand out brackets
DC2-4SC -0C -2=-5
equation quadratic
•
-
everything
'
-
23C -5×1-3=0 •
move to LHS
2×21-5×-3=0 .
make 1st term positive
(2×-111×+3)=0 .
facto rise >
calculator
"
D= -2 or ✗ =-3
away
A
I. simple
mar mot be
2. brackets
µ
tantamount
3. fractions
4 .
I .
quad formula
K method
5 2
completing the square
-
. .
ax
>
+ bxtc=0
I.
simultaneous
, simple
L
E
= a QV
1 .
JC2 =
63C § E
SC2-6OC =
0 •
everything on LHS →
descending powers +
leading term positive
✗ (x -
67=0 .
count the people →
z
→
CF
✗ =0 Or 3C -6=0 A- 13=0
•
✗ =b A :O Or 13=0
2
2 .
23C = -
✗
JC21-2JC =0
Ibct 21--0
1=0 or ✗ =
-2
method 1 method 2
✗ 2=9
'
3 .
9 -_
I
-
xita=o x=±fg
✗ 2-9=0 ✗ =3 Or D= -3
1×-311×1-31=0
✗ =3 Or ✗ =-3
2
4 . I -6 = ✗
-
✗ 2+21-6=0
2-
✗ ✗ -6=0
1×-311×+21=0
✗ =3 Or ✗ =
-2
truckers
.
(-2×-111×+2)=-5 •
expand out brackets
DC2-4SC -0C -2=-5
equation quadratic
•
-
everything
'
-
23C -5×1-3=0 •
move to LHS
2×21-5×-3=0 .
make 1st term positive
(2×-111×+3)=0 .
facto rise >
calculator
"
D= -2 or ✗ =-3
