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9 September, 12:23

Simplify 2 (1+√3) ² + (1+√3) + 1

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  1. 9 September, 12:35
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    = 5 (2 + √3)

    Step-by-step explanation:

    2 (1 + √3) ² + (1 + √3) + 1 =

    = 2 (1 + 2√3 + 3) + 1 + √3 + 1

    = 2 + 4√3 + 6 + 1 + √3 + 1

    = (2 + 6 + 2) + √3 (4 + 1)

    = 10 + 5√3

    = 5 (2 + √3)
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