Math, asked by poojahans, 1 year ago

pls answer it..❤️❤️❤️✌️✌️✌️✌️✌️✌️✌️✌️✌️✌️❤️❤️❤️❤️

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Answered by Jay312

1

Answer ------ 322

$x + \frac{1}{x} = 7$

${x}^{3} + \frac{1}{ {x}^{3} } = {(x + \frac{1}{x} )}^{3} - 3(x)( \frac{1}{x} )(x + \frac{1}{x} )$

$= {7}^{3} - 3(7)$

= 343 – 21

= 322

poojahans: which formula have you applied

Jay312: (a+b)^3 = a^3 + b^3 + 3ab(a+b)

Jay312: pls mark it as branliest

poojahans: okk I'll

poojahans: see

Jay312: thanks

Jay312: pls mark it BRAINLIEST

Jay312: pls mark it as BRAINLIEST

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Jay312: pls select a BRAINLIEST answer

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