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03.09.2021 •
Mathematics
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Ответ:
Hi, I wish you a nice day.
Ответ:
whare to go ?
yes it good and cool
you are looking beautiful ❤
Ответ:
How do you solve
5
x
2
−
2
x
+
4
=
0
by quadratic formula?
=>Explanation:
Solve by quadratic formula:
5
x
2
−
2
x
+
4
=
0
is a quadratic equation in standard form:
a
x
2
+
b
x
+
c
, where
a
=
5
,
b
=
−
2
, and
c
=
4
.
quadratic formula:
x
=
−
b
±
√
b
2
−
4
a
c
2
a
Substitute the values for
a
,
b
,
and
c
into the formula.
x
=
−
(
−
2
)
±
√
(
−
2
)
2
−
4
⋅
5
⋅
4
2
⋅
5
Simplify.
x
=
2
±
√
4
−
80
10
x
=
2
±
√
−
76
10
Prime factorize the number of the square root.
x
=
2
±
i
√
2
×
2
×
19
10
Simplify.
x
=
2
±
2
i
√
19
10
Reduce.
x
=
1
±
i
√
19
5
Solutions for
x
.
x
=
1
+
i
√
19
5
,
x
=
1
−
i
√
19
5