solve x2-2X+3=0 (solve by using quadratic formula
Answers
Answered by
1
Answer:
We have
x
2
+
2
x
−
3
=
0
. For any
a
x
2
+
b
x
+
c
=
0
,
x
is given by:
x
=
−
b
±
√
b
2
−
4
a
c
2
a
Here,
a
=
1
,
b
=
2
,
c
=
−
3
. Inputting:
x
=
−
(
2
)
±
√
2
2
−
4
(
1
)
(
−
3
)
2
⋅
1
x
=
−
2
±
√
4
+
12
2
x
=
−
2
±
√
16
2
x
=
−
2
±
4
2
x
=
2
2
,
−
6
2
x
=
1
,
−
3
Answered by
4
No real roots
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