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95×96 , solve by using appropriate …

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95×96 , solve by using appropriate Identity

    • Posted by Kavya Vyas 3 years, 2 months ago

    CBSE > Class 09 > Mathematics
    • 3 answers

    Rishi Patanwadia 3 years, 2 months ago

    Identity 4. 95×96, (100-5) (100-4) = (x+a) (x+b) (x+a) (x+b) = x²+ (a+b) x + (a) (b) (100-5) (100-4) = 100²+ [(-5)+(-4)] 100 + (-5)(-4) = 10,000 + (-1) 100 + 20 = 10,000 + (-100) + 20 = 10,000 - 100 +20 = 9,900 +20 = 9,920

    0Thank You

    Aniket Kulkarni 3 years, 2 months ago

    Edit , one mistake it should be +20

    1Thank You

    Aniket Kulkarni 3 years, 2 months ago

    (95×96) (100-5)(100-4) Using indentity IV 100^2+[(-5)+(-4)]100+(-5×-4) 10000+(-900)+(-20) 10000-880 9120

    2Thank You

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