4x+7=0
What is the value of x
Answers
Answered by
0
Answer:
value of X
The difference of squares identity can be written:
a
2
−
b
2
=
(
a
−
b
)
(
a
+
b
)
We can use this with
a
=
(
x
−
2
)
and
b
=
√
3
i
as follows:
0
=
x
2
−
4
x
+
7
0
=
x
2
−
4
x
+
4
+
3
0
=
(
x
−
2
)
2
+
(
√
3
)
2
0
=
(
x
−
2
)
2
−
(
√
3
i
)
2
0
=
(
(
x
−
2
)
−
√
3
i
)
(
(
x
−
2
)
+
√
3
i
)
0
=
(
x
−
2
−
√
3
i
)
(
x
−
2
+
√
3
i
)
Hence the two roots are:
x
=
2
+
√
3
i
and
x
=
2
−
√
3
i
Answer link
Answered by
0
Step-by-step explanation:
4x+7=0
4x= -7
x= -7/4
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