Question on: WAEC Mathematics - 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 Option: D
\((2x-3y)(x-5y)=2x^2 - 10xy - 3xy + 15y^2\
=2x^2 - 13xy + 15y^2\)
=2x^2 - 13xy + 15y^2\)
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