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2015-09-20T17:57:25+05:30
Equate both the equation and fill the value of x=2 . ANSWER is a=1
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2015-09-20T23:42:49+05:30

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Remainder for a polynomial in x, P(x)  on division by (x-2)  is given by  P(x=2).

     P(x) = a x³ +  3 x² - 13
     P(2) = a * 8 + 12 - 13 = 8 a -1

Remainder for Q(x) = 2 x³ - 5 x + a
    is  Q(2)  = 6 + a

  given  8 a - 1 = 6 + a
   solving        a = 1

1 5 1
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