1.

The factors of \[{{\mathbf{x}}^{\mathbf{2}}}+\mathbf{2xy}-\mathbf{15}{{\mathbf{y}}^{\mathbf{2}}}\]are

A.  \[\left( x-5y \right)\left( x-3y \right)\]         
B.  \[\left( x+5y \right)\left( x+3y \right)\]
C.  \[\left( x-5y \right)\left( x+3y \right)\]          
D.  \[\left( x+5y \right)\left( x-3y \right)\]
Answer» E.


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