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Obtain all zeros of the polynomial …

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Obtain all zeros of the polynomial f(x)=2x⁴+x³-14x²-19x-6, if two zeros of it are -2and -1.

    • Posted by Honey Jethwani 7 years, 6 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Amit Kumar 7 years, 6 months ago

    Zeros are -2 and -1. Thus ( x-2)=0, (x -1)=0 We get (x+2)and (x+1) Multiply both, we get X square + 3x + 2, now divide it with f(x) We get 2x square -5x - 3,now factorise it ,we get (x -3) (2x+1) (X-3)=0, (2x+1)=0, Solve it, we get X=3 and x= -1/2

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