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CBSE Class 9 Answered

find the value? please slove this question step by step.
Asked by z.h.mohammed | 08 Oct, 2009, 04:42: PM
Expert Answer

p3-q3 = (p-q)(p2+pq+q2)

    =(p-q)(p2- 2pq+q2 +3pq)

    = (p-q)[(p-q)2+3pq]

    =(10/9)[(10/9)2+3(5/3)]

    =5050/729.

q = 5/(3p)

p - 5/(3p) = 10/9

9p2 - 10p - 15 = 0

p = (10±810)/18; Hence q = 90/(30±2410)

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Answered by | 08 Oct, 2009, 09:34: PM
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