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How do you factor #x^2-xy-2y^2#?

1 Answer

Jul 29, 2016

#=(x+y)(x-2y)#

Explanation:

#x^2-xy-2y^2#
#=x^2-2xy+xy-2y^2#
#=x(x-2y)+y(x-2y)#
#=(x+y)(x-2y)#

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