Разложите на множители:

\(\displaystyle 9xt-24qx+21jt-56jq=3x\)\(\displaystyle \big(\)[ ]\(\displaystyle \big)+7j\,\big(\)[ ]\(\displaystyle \big)=\big(\)[ ]\(\displaystyle \big)\big(\)[ ]\(\displaystyle \big)\)