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5 September, 21:39

Factor 5x 4 - 30x 2 - 135

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  1. 5 September, 22:50
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    Hello,

    5x^4-30x²-135=5 (x^4-6x²-27)

    =5 (x²-9) (x²+3)

    =5 (x-3) (x+3) (x²+3)
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