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Katen [24]
3 years ago
10

How do you factor x^4-5x^2+4

Mathematics
1 answer:
sesenic [268]3 years ago
7 0
x^4-5x^2+4=0\\\\ x^4+3x^2+2x^2-3x^2-9x-6x+2x^2+6x+4=0 \\\\(x^2-3x+2)(x^2+3x+2)=0\\\\ (x^2-x-2x+2)(x^2+2x+x+2)=0\\\\
(x-2)(x-1)(x+1)(x+2)=0
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Answer:

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