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14 June, 16:03

J = - 8c^2 - 4cd - d^2 k = - 3c^2 + 7cd - 3d^2 j+k =

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  1. 14 June, 18:48
    0
    J=-8c²-4cd-d²

    k=-3c²+7cd-3d²

    j+k=

    -8c²-4cd-d²-3c²+7cd-3d²

    -11c²-4d²+3cd
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