AM-1134

Binomial expansion

A Math · Secondary 4 · Hard · Binomial expansion

In the expansion of

(3x^2+5x+q)(1-2x)^{8}

, the coefficient of

x^3

is 432. Find the value of

q

.

$\dfrac{5}{28}$
$\dfrac{5}{14}$
$\dfrac{10}{21}$
$\dfrac{1}{7}$

Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.

Loading problem…