SOLUTION: xy-7x+3y-21
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Question 168145
:
xy-7x+3y-21
Answer by
nerdybill(6958)
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xy-7x+3y-21
Group terms:
(xy-7x)+(3y-21)
Factor each sub-group:
x(y-7)+3(y-7)
Factor out (y-7):
(y-7)(x+3)
