3-root7 whole to the power of 2 rationalise​

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3-root7 whole to the power of 2 rationalise​

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Sadie 2 months 2021-11-10T19:43:02+00:00 1 Answer 0 views 0

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    2021-11-10T19:45:00+00:00

    Answer:

    16 – 6√7

    Step-by-step explanation:

    1) (3 – √7)², Using (a – b)² = a² + b² – 2ab Identity.

    2) 3² + (√7)² – 2(3)(√7) = 9 + 7 – 6√7 = 16 – 6√7

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