AM-153

Binomial expansion

A Math · Secondary 3 · Hard · Binomial expansion

Given that

k>0

and that the term independent of

x

in the expansion of

\left(x^2+\dfrac{k}{x}\right)^6

is

240

, find the value of

k

.

$2$
$4$
$16$
$\sqrt[4]{12}$

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