3xsquare+7x+1=0 by using quadratic formula
Answers
3
x
2
−
7
x
−
1
=
0
Use the quadratic formula to find the solutions.
−
b
±
√
b
2
−
4
(
a
c
)
2
a
Substitute the values
a
=
3
,
b
=
−
7
, and
c
=
−
1
into the quadratic formula and solve for
x
.
7
±
√
(
−
7
)
2
−
4
⋅
(
3
⋅
−
1
)
2
⋅
3
Simplify.
Tap for more steps...
x
=
7
±
√
61
6
The result can be shown in multiple forms.
Exact Form:
x
=
7
±
√
61
6
Decimal Form:
x
=
2.46837494
…
,
−
0.13504161
…
3
x
2
−
7
x
−
1
=
0
Use the quadratic formula to find the solutions.
−
b
±
√
b
2
−
4
(
a
c
)
2
a
Substitute the values
a
=
3
,
b
=
−
7
, and
c
=
−
1
into the quadratic formula and solve for
x
.
7
±
√
(
−
7
)
2
−
4
⋅
(
3
⋅
−
1
)
2
⋅
3
Simplify.
Tap for more steps...
x
=
7
±
√
61
6
The result can be shown in multiple forms.
Exact Form:
x
=
7
±
√
61
6
Decimal Form:
x
=
2.46837494
…
,
−
0.13504161
…
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Step-by-step explanation:
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