Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

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Question 170021This question is from textbook Algebra Structure and Method Book One
: Factor a^2+b^2-c^2-d^2-2ab+2cdThis question is from textbook Algebra Structure and Method Book One
: Factor a^2+b^2-c^2-d^2-2ab+2cd
Answer by checkley77(3848) About Me  (Show Source):
You can put this solution on YOUR website!
a^2+b^2-c^2-d^2-2ab+2cd
(a^2-2ab+b^2)-(c^2-2cd+d^2)
(a-b)^2-(c-d)^2 ans.