the cofficient of x^4 in the expansion of (1-x+2x^2)12

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the cofficient of x^4 in the expansion of (1-x+2x^2)12

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Hadley 7 months 2021-10-13T18:08:49+00:00 1 Answer 0 views 0

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    2021-10-13T18:10:03+00:00

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    0 is the answerof ur question

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18:9+8+9*3-7:3-1*13 = ? ( )