Question

please solve q26 part2

Answer 1

[0010001111]... Hello User... [1001010101]
Here's your answer...

For my convenience, I'm taking a as x here.

$x + \frac{1}{x} = 7 \\ {(x + \frac{1}{x}) }^{3} = {x}^{3} + \frac{1}{ {x}^{3} } + 3(x + \frac{1}{x} ) \\ 343 = {x}^{3} + \frac{1}{ {x}^{3} } + 21 \\ {x}^{3} + \frac{1}{ {x}^{3} } = 322$
So a³+1/a³ = 322 and the answer you've written is correct.

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