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Discussion :: Algebra Problems

  1.  Factorise -20x² - 9x + 20

    2. A.

    (5 - 4x)(4 - 5x)
    B.

    (5 - 4x)(4 + 5x)
    C.

    (5 + 4x)(4 - 5x)
    D.

    (5 + 4x)(4 + 5x)

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    Answer : Option C

    Explanation :

    (5 + 4x)(4 - 5x)

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