Question

factorise please please do it fast,, please don't give wrong and use less answers the correct anwer will be marked as brain list please please......​

Answer 1

Answer:

Your answer is (c+d)^2-(a-b)^2

Your solution is provided in above attachment

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Answer 2

2(ab+cd) - a²-b²+c²+d²

= 2ab+2cd -a²-b²+c²+d²

= 2cd+c²+d²- a²-b²+2ab

= (c²+d²+2cd) -(a²-b²+2ab)

= (c+d)²-(a-b)²