SOLUTION: Factor 5A+2XB-5B-2AX

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Question 23761: Factor
5A+2XB-5B-2AX
Answer by fractalier(6550) About Me  (Show Source):
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We factor this by "grouping"
5A + 2XB - 5B - 2AX =
5A - 5B + 2BX - 2AX =
5(A - B) + 2X(B - A) =
5(A - B) - 2X(A - B) =
(5 - 2X)(A - B)