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5 January, 07:55

Which expression is equivalent to (x2 - 8) - (-2x2 + 4) ?

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  1. 5 January, 08:20
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    Answer: 6 (x-2)

    Step-by-step explanation:

    (x·2-8) - (2x·2+4)

    (2 (x-4)) + 2x·2-4

    2 (x-4) + 2x·2-4

    2 (x-4) + 4x-4

    2 (x-4+2x-2)

    2 (3x-4-2)

    2 (3x-6)

    2·3 (x-2)

    6 (x-2)
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