factories 2x squareroot -7 x -39
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Step-by-step explanation:
Apply the quadratic formula +;;;;;
x
=
−
b
±
√
b
2
−
4
a
c
2
a
ⁿ0000
where
a
x
2
+
b
x
+
c
=
0
to
2
x
2
+
x
−
5
=
0
obtaining the solutions
555
6
=
−
1
±
√
41
4
and thus the factors
21
(
x
−
−
1
+
√
41
4
)
and
(
x
−
−
1
−
√
41
4
)
Since
255
(
x
+
1
−
√
41
4
)
(
2
+
1
+
√
41
4
)
=
4
2
+
5
2
−
5
2
we will have an additional constant factor of
2
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