Answers

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2014-11-10T19:46:17+05:30
1.
b^2c-bc^2+ca(c-a)+a^2b-ab^2
b^2c-ab^2-bc^2+a^2b+ca(c-a)
Take b^2 common from first two terms and b from next two terms
b^2(c-a)-b(c^2-a^2) +ca(c-a)
b^2(c-a)-b[(c-a)(c+a)]+ca(c-a)
Taking c-a common from all the terms
(c-a) {b^2-b(c+a)+ca}
(c-a) {b^2-bc-ab+ca}
(c-a) {b(b-c) -a(b-c)}
(c-a) {(b-c) (b-a)}
(c-a) (b-c) (b-a)
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