How do you factor completely: #9xy + 36x − 10y − 40#?

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Answer 1 · 2015-07-12T04:36:07

#9xy+36x-10y-40=(9x-10)(y+4)#

#9xy+36x-10y-40#

Factor by grouping.

#(9xy+36x)-(10y+40)#

Factor out the GCF for the first group and for the second group.

#9x(y+4)-10(y+4)#

Factor out the #(y+4)#.

#(9x-10)(y+4)#