(ii) 2√3x² + x -5√3
Answers
Answered by
0
Answer:
what we have to do there is no question
Answered by
0
Answer:
Step-by-step explanation:
x
=
either
0.3837959396
/
1
+
√
13
12
or
=
−
0.217129273
/
1
−
√
13
12
Explanation:
We can use the quadratic formula to solve this.
3
x
2
−
x
−
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
3
b
=
−
1
c
=
−
1
x
=
−
b
±
√
b
2
−
4
a
c
2
a
x
=
−
(
−
1
)
±
√
−
1
2
−
4
×
3
×
−
1
2
×
6
x
=
1
±
√
1
−
12
×
−
1
2
×
6
x
=
1
±
√
1
−
−
12
12
x
=
1
±
√
13
12
x
=
1
±
3.605551275
12
x
1
=
1
+
3.605551275
12
x
1
=
4.605551275
12
x
1
=
0.3837959396
or
1
+
√
13
12
x
2
=
1
−
3.605551275
12
x
2
=
−
2.605551275
12
x
2
=
−
0.217129273
or
1
−
√
13
12
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