How to factorise this eqn
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How to factorise this eqn

[From: ] [author: ] [Date: 12-11-29] [Hit: ]
The roots are irrational, so its impossible to factor this one.......
8x^4+45x^3-4544000x-11360000=0

Please show the workings and explain it. Thank you.

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I would never try to factor that. Instead, Newton's method will find answers for me.

x = -2.500085971513
x = 81.817809773358

And those are the only two I could find. The roots are irrational, so it's impossible to factor this one.
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