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What should be added to 7x^3+4x^2-2 to get -4x^3-2x^2+6?

 Feb 11, 2019
 #1
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7x^3+4x^2-2-11x^3-6x^2+8 = -4x^3-2x^2+6?

laugh

 Feb 11, 2019

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