x² + 3x - 36 = 0
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By using the quadratic formula,
=
−
±
2
−
4
√
2
Now,
2
+
3
−
3
6
=
0
x
2
+
3
x
−
36
=
0
x2+3x−36=0
=
1
a
=
1
a=1
=
3
b
=
3
b=3
=
−
3
6
c
=
−
36
c=−36
=
−
3
±
3
2
−
4
⋅
1
(
−
3
6
)
√
2
⋅
1
=
−
3
±
3
1
7
√
2
Therefore,
=
−
3
±
3
1
7
√
2
=
−
±
2
−
4
√
2
Now,
2
+
3
−
3
6
=
0
x
2
+
3
x
−
36
=
0
x2+3x−36=0
=
1
a
=
1
a=1
=
3
b
=
3
b=3
=
−
3
6
c
=
−
36
c=−36
=
−
3
±
3
2
−
4
⋅
1
(
−
3
6
)
√
2
⋅
1
=
−
3
±
3
1
7
√
2
Therefore,
=
−
3
±
3
1
7
√
2
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