Test:
Polynomial - Ambitious
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Question 1:
Solve by factoring:
x
2
+
11
x
+
18
=
0
A
x
=
−
11,
x
=
−
18
B
x
=
2,
x
=
−
6
C
x
=
3,
x
=
6
D
x
=
−
2,
x
=
−
9
Question 2:
Solve by factoring:
5
x
2
−
26
x
+
24
=
0
A
x
=
4
,
x
=
1
1
5
B
x
=
6
,
x
=
20
C
x
=
−
4
,
x
=
5
D
x
=
−
3
,
x
=
3
4
Question 3:
Solve:
4
x
2
−
5
x
−
6
=
0
A
x
=
2
,
x
=
−
2
7
B
x
=
2
,
x
=
−
3
4
C
x
=
−
1
2
3
,
x
=
4
5
D
x
=
−
1
,
x
=
−
2
Question 4:
Solve:
x
2
+
2
x
+
1
=
0
A
{
x
1
=
1
x
2
=
-2
B
Doesn’t exist
C
{
x
1
=
-1
x
2
=
-1
D
{
x
1
=
-1
x
2
=
1
Question 5:
Solve:
6
x
2
+
9
x
+
2
=
0
A
{
x
1
=
-1
.2287
x
2
=
-0
.2713
B
{
x
1
=
2
.0284
x
2
=
-1
.6592
C
{
x
1
=
-1
.7365
x
2
=
0
.1143
D
{
x
1
=
-1
x
2
=
1
Question 6:
Solve:
8
x
2
+
5
x
−
6
=
0
A
{
x
1
=
0
.0331
x
2
=
0
.88
B
{
x
1
=
0
.9821
x
2
=
0
.1231
C
{
x
1
=
-1
.2332
x
2
=
0
.6082
D
{
x
1
=
2
.1632
x
2
=
−
0
.9081
Question 7:
Solve:
6
x
2
−
15
x
+
7
=
0
A
{
x
1
=
0.6208
x
2
=
1.8792
B
{
x
1
=
−
0.098
x
2
=
1.17
C
{
x
1
=
0.027
x
2
=
0.656
D
{
x
1
=
0.32
x
2
=
1.51
Question 8:
Solve:
9
x
2
+
11
x
−
4
=
0
A
{
x
1
=
1
.2862
x
2
=
1
.0937
B
{
x
1
=
-1
.9725
x
2
=
0
.6262
C
{
x
1
=
-1
.5155
x
2
=
0
.2933
D
{
x
1
=
1
.6362
x
2
=
0.3626
Question 9:
Solve:
5
x
3
+
14
x
2
+
7
x
−
2
=
0
A
{
x
1
=
-1
x
2
=
−
2
x
3
=
1
5
B
{
x
1
=
1
2
3
x
2
=
1
3
4
x
3
=
2
1
8
C
{
x
1
=
1
x
2
=
2
x
3
=
3
D
{
x
1
=
−
2
1
2
x
2
=
−
1
x
3
=
2
7
Question 10:
Solve:
2
x
4
+
14
x
3
+
33
x
2
+
31
x
+
10
=
0
A
{
x
1
=
-3
x
2
=
−
2
x
3
=
1
x
4
=
2
B
{
x
1
=
-2
.6713
x
2
=
−
1.0646
x
3
=
0.9361
x
4
=
1.3772
C
{
x
1
=
-1
x
2
=
−
1.0646
x
3
=
−
2
x
4
=
−
2.9354
D
{
x
1
=
−
3
1
5
x
2
=
−
2
2
3
x
3
=
3
x
4
=
3
2
5
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