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algebra

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add the following
(8.1x^2-5.9x-7.1)+-9.8x^2-8.1x-4.8)

  • algebra - ,

    (8.1x^2-5.9x-7.1)+(-9.8x^2-8.1x-4.8)=
    8.1x^2+(-9.8x^2) -5.9x+(-8.1x) -7.1+(-4.8)=
    8.1x^2-9.8x^2 -5.9x-8.1x -7.1-4.8=

    -1.71x^2 -14x -11.9

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