Câu hỏi
Cho \(\overrightarrow a = \left( {2;1} \right),\overrightarrow b = \left( {3;4} \right),\overrightarrow c = \left( { - 7;2} \right)\). Tìm vectơ \(\overrightarrow x \) sao cho \(\overrightarrow x - 2\overrightarrow a = \overrightarrow b - 3\overrightarrow c \).
A
\(\overrightarrow x = \left( {28;2} \right)\).
B
\(\overrightarrow x = \left( {13;5} \right)\).
C
\(\overrightarrow x = \left( {16;4} \right)\).
D
\(\overrightarrow x = \left( {28;0} \right)\).