Question

solve :
$(x + \frac{1}{x}) {3}$
​

Answer 1

Answer:

( x + 1 / x ) 3 = 3 ( x + 1 / x )

= 3x + 3 / x

= 3x * x + 3 / x

= 3x² + 3 / x

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Answer 2

Answer:

•(a+b)³ = a³+b³+3ab(a+b)

• (x + 1/x)³

= x³+1/x³+3 × x× 1/x(x+1/x)

= x³ + 1/x³ + 3(x+1/x)

= x³ + 1/x³ + 3x + 3/x