Examples for Practice (2.4)
Home
Courses
Location
Contacts
Solve the following quadratic equations by using Quadratic Formula:
Click on the question to view the answer
1.
m
2
− 3
m
− 10 = 0
Answer:
Solution Set = {5, − 2}
2.
z
2
+ 3
z
− 2 = 0
Answer:
Solution Set =
{
-
3
+
17
2
,
-
3
-
17
2
}
3.
x
2
+
x
-
1
3
=
0
Answer:
Solution Set =
{
-
1
+
13
6
,
-
1
-
13
6
}
4. 5
m
2
− 2
m
= 2
Answer:
Solution Set =
{
1
+
11
5
,
1
-
11
5
}
5. 7
x
+ 1 = 6
x
2
Answer:
Solution Set =
{
7
+
73
12
,
7
-
73
12
}
6. 2
x
2
−
x
− 4 = 0
Answer:
1
+
33
4
,
1
-
33
4
are the solutions of the given equation.
7. 3
y
2
+ 7
y
+ 4 = 0
Answer:
Solution Set =
{
-
1
,
-
4
3
}
8. 2
n
2
+ 5
n
+ 2 = 0
Answer:
Solution Set =
{
-
1
2
,
-
2
}
9. 7
p
2
− 5
p
− 2 = 0
Answer:
Solution Set =
{
1
,
-
2
7
}
10. 9
s
2
− 4 = − 6
s
Answer:
Solution Set =
{
-
1
+
5
3
,
-
1
-
5
3
}
11. 3
q
2
= 2
q
+ 8
Answer:
Solution Set =
{
2
,
-
4
3
}
12. 4
x
2
+ 7
x
+ 2 = 0
Answer:
Solution Set =
{
-
7
+
17
8
,
-
7
-
17
8
}
13. 3
x
2
− 5
x
+ 2 = 0
Answer:
Solution Set =
{
2
3
,
1
}
14.
2
x
2
-
2
2
x
+
1
=
0
Answer:
Solution Set =
{
1
2
,
1
2
}
15.
x
+
1
x
=
3
,
x
≠
0
Answer:
Solution Set =
{
3
+
5
2
,
3
-
5
2
}
Back
This page was last modified on
05 March 2021 at 22:50