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3 April, 06:08

What is the factorization of 121b4 - 49? (11b - 7) (11b - 7) (11b + 7) (11b - 7) (11b2 - 7) (11b2 - 7) (11b2 + 7) (11b2 - 7)

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  1. 3 April, 06:17
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    121b^4 - 49 is a difference of perfect squares

    Sqrt of 121 is 11

    Sqrt of 49 is 7

    (11b^2 + 7) (11b^2 - 7)
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