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CBSE Class 9 Answered

factorise : x4 + 2x3y - 2xy3 -y4
Asked by nisha_vini29 | 13 Sep, 2015, 12:21: AM
answered-by-expert Expert Answer

x to the power of 4 plus 2 x cubed y minus 2 x y cubed minus y to the power of 4 equals x to the power of 4 minus y to the power of 4 plus 2 x cubed y minus 2 x y cubed equals open parentheses x squared minus y squared close parentheses open parentheses x squared plus y squared close parentheses plus 2 x y open parentheses x squared minus y squared close parentheses equals open parentheses x squared minus y squared close parentheses open parentheses x squared plus y squared plus 2 x y close parentheses equals open parentheses x squared minus y squared close parentheses open parentheses x squared plus y squared close parentheses squared

Answered by | 14 Sep, 2015, 07:08: PM

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