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13-02-2021
Mathematics

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3x⁷+4|x| is it polynomial function

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13-02-2021

Answer:

[tex]3x^7+4|x| = 3x^7+4x [if~x\geq 0]\\3x^7+4|x|=3x^7-4x [if~x<0]\\In~both~of~the~cases,~power~of~x~is~a~whole~number.~Therefore,~3x^7+4|x|~is~a~polynomial.[/tex]

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