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Vikentia [17]
3 years ago
8

Solve x4 − 7x2 − 18 = 0

Mathematics
2 answers:
babunello [35]3 years ago
5 0
Thw answer is X = 3 or -3
Andrew [12]3 years ago
3 0

Answer:

the answer is ​

x=±3,±√​2

​

​​ ı

Step-by-step explanation:

(x​^2−9)(x​2+2)=0

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3 years ago
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Sav [38]
Sorry this is hard to read :-(
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4 years ago
calculate the side lengths a and b to two decimal places angle a is 64 angle b is 85 and line ab is 9.3? PLEASE HELP ASAP
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