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notsponge [240]
3 years ago
9

Solve: x^4-34x^2=-225

Mathematics
1 answer:
dangina [55]3 years ago
8 0
X
4
−34x
2
+225=0

2 Factor
x
4
−
34
x
2
+
225
x
4
−34x
2
+225.
(
x
2
−
25
)
(
x
2
−
9
)
=
0
(x
2
−25)(x
2
−9)=0

3 Solve for
x
x.
x
=
±
5
,
±
3
x=±5,±3
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