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Posted by on Sunday, March 31, 2013 at 2:37am.

factor completely if the polinomial is prime state this

x^2 + 6xy - 135y^2

  • math - , Sunday, March 31, 2013 at 4:59am

    we need two factors of 135 which are close to its square root : ~= 12
    So, 9,15?

    (x-9y)(x+15y)

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