Quadratic Equations Worksheet Page 9
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12QUADRATIC EQUATIONS – EXERCISES
Solve each of the following equations by the method of your choice and check your solutions.
−
+ =
2
x
2
x
1 0
1.
+
+
=
2
x
9
x
20 0
2.
−
−
=
2
3
x
5
x
12 0
3.
+
− =
2
6
x
9
x
6 0
4.
+
−
=
2
x
3
x
28 0
5.
−
=
+
2
3
x
2
x
2
x
7
6.
−
=
2
4
x
12
x
16
7.
+
=
2
x
3
x
0
8.
1
10
+
=
3
9.
2
x
x
− − =
2
3
y
y
4 0
10.
+
+ =
2
y
2
y
1 0
11.
−
− =
2
x
2
x
8 0
12.
+ =
2
x
4 0
13.
+ = −
2
x
x
1
14.
+
− =
2
9
y
6
y
8 0
15.
−
=
2
y
25 0
16.
−
+ =
2
6
y
13
y
6 0
17.
−
4
1
−
=
x
18.
3
x
3
4
21
−
=
x
19.
x
5
5
1
+
=
3
20.
2
2
x
x
1
3
−
=
4
21.
2
x
x
=
2
8
x
x
22.
−
+
= −
(
x
5
)(
x
8
)
20
23.
+
−
=
(
x
6
)(
x
3
)
10
24.
2
x
−
=
1
25.
+
−
x
5
x
5
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