MathematicsMedium244×since 2002Q4424If A = \left[ {\matrix{ 2 & { - 3} \cr { - 4} & 1 \cr } } \right], then adj(3A² + 12A) is equal toA\left[ {\matrix{ {51} & {63} \cr {84} & {72} \cr } } \right]B\left[ {\matrix{ {51} & {84} \cr {63} & {72} \cr } } \right]C\left[ {\matrix{ {72} & {-63} \cr {-84} & {51} \cr } } \right]D\left[ {\matrix{ {72} & {-84} \cr {-63} & {51} \cr } } \right]Check answerSkip