Question

if x+1/x=5, find the value of x³+1/x³​

Answer 1

Answer:

answer for the given problem is given

Answer 2

Answer:

$x - 1 \div x=5$

$(x- 1 \div x)^3= (5)^3$

$x^3 - 1 \div x^3 - 3 (x - 1 \div x ) = 125$

$x^3 - 1 \div x^3 - 3 (5) = 125$

$x^3 - 1 \div x^3 - 15 = 125$

$x^3 - 1 \div x^3 = 125 + 15 = 140$

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