x ^ { 3 } + 9 x ^ { 2 } y + 27 x y ^ { 2 } + 27 y ^ { 3 } \text { when – InterviewSolution

1.	x ^ { 3 } + 9 x ^ { 2 } y + 27 x y ^ { 2 } + 27 y ^ { 3 } \text { when } x = 9 , y = - 3
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