Offline paper
Mathematics · 2018
JEE Main 2018 · 2018-04-08 Offline · Q64
If |x-4, 2 x, 2 x; 2 x, x-4, 2 x; 2 x, 2 x, x-4| =(A+B x)(x-A)^2, then the ordered pair ( A, B ) is equal to:
If $\displaystyle \left|\begin{array}{rrr}x-4 & 2 x & 2 x \\ 2 x & x-4 & 2 x \\ 2 x & 2 x & x-4\end{array}\right|=(A+B x)(x-A)^2$,
then the ordered pair $\displaystyle (\mathrm{A}, \mathrm{B})$ is equal to :
Official answer
(3)
$\displaystyle (-4, 5)$
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JEE Main 2018 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.