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expand (2x-3y)(x-5y)

Mathematics
WAEC 2005
expand (2x-3y)(x-5y)
  • A. \(2x^2 + 13xy - 15y^2\)
  • B. \(2x^2 - 13xy - 15y^2\)
  • C. \(2x^2 + 13xy + 15y^2\)
  • D. \(2x^2 - 13xy + 15y^2\)
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Correct Answer: Option D
Explanation
\((2x-3y)(x-5y)=2x^2 - 10xy - 3xy + 15y^2\\
=2x^2 - 13xy + 15y^2\)
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