Factorise x^3+3x+3/x-1/x^3
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Answered by
7
Answer:
(x + 1/x)3
Step-by-step explanation:
Given x3 + 1/x3 + 3x + 3/x
This can be re-written as shown
x3 + 1/x3 + 3x2 × (1/x) + 3 × (x) × (1/x)
This is in the form of a3 + b3 +3a2b + 3ab2 = (a + b)3
Hence, x3 + 1/x3 + 3x2 × (1/x) + 3 × (x) × (1/x) = (x + 1/x)3
Answered by
0
Answer:
x+1/x^3
Step-by-step explanation:
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