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khushi

  • 5 years ago

If x4 + px3 + rx + s2 is a perfect square then, ps = ____

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  1. anonymous
    • 5 years ago
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    is it X^4 + px^3 + rx + 2s??

  2. anonymous
    • 5 years ago
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    and is that you in the picture?

  3. khushi
    • 5 years ago
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    yess but no 2s its s^2

  4. anonymous
    • 5 years ago
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    the answer is 'r'

  5. anonymous
    • 5 years ago
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    its not

  6. anonymous
    • 5 years ago
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    the answer is R, sorry

  7. anonymous
    • 5 years ago
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    if u consider a quad eqn x^2 + ax + b and the then square it, you get x^4 + (2a)x^3 + (a^2 + 2b)x^2 + 2abx + b^2 if u compare the coefficients with ur own equation, p=2a s=b so ps = 2ab, which is equal to r in ur eqn (coeff of x) hence ps=r

  8. anonymous
    • 5 years ago
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    @him1618: Great you got it 'right' this time :-)

  9. anonymous
    • 5 years ago
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    no there were external pressures to deal with the first time i squared it

  10. khushi
    • 5 years ago
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    thank u @ him1618 n aash7sh

  11. anonymous
    • 5 years ago
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    hey no probs ma'am

  12. anonymous
    • 5 years ago
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    r u in india?

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