x/x²+x-12=0 in tabular method
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Answer:
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Step-by-step explanation:
According to quadratic formula if
a
x
2
+
b
x
+
c
=
0
, then
x
=
−
b
±
√
b
2
−
4
a
c
2
a
Here we have
x
2
−
7
x
+
12
=
0
i.e.
a
=
1
,
b
=
−
7
and
c
=
12
and
x
=
−
(
−
7
)
±
√
(
−
7
)
2
−
4
⋅
1
⋅
12
2
⋅
1
=
7
±
√
49
−
48
2
=
7
±
√
1
2
=
7
±
1
2
i.e.
x
=
4
or
3
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