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7 January, 08:14

Expand and combine like terms (9c^2+c^6) (9c^2-c^6)

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  1. 7 January, 11:46
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    Answer: - c12+81c4

    Step-by-step explanation:

    (9c2+c6) (9c2-c6)

    = (9c2+c6) (9c2+-c6)

    = (9c2) (9c2) + (9c2) (-c6) + (c6) (9c2) + (c6) (-c6)

    =81c4-9c8+9c8-c12

    =-c12+81c4
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