$\,6\;(\,4+\,5\,b) = $   ?

$\,24 \,-30\,\,b$ $\,24 \,-5\,\,b$ $\,10 +\,11\,\,b$ $\,24 +\,5\,b$ $\,24 +\,30\,\,b$ $\,-24 +\,11\,\,b$

$\,3\;(\,t\,-3) = $   ?

$\,3\,\,t $ $\,4\,\,t $ $\,3\,\,t +\,9$ $\,3\,\,t \,-3$ $\,3\,\,t \,-9$ $\,3\,\,t +\,3$

$\,3\,a\;(\,7\,a+\,8) = $   ?

$\,10\,\,a^2 +\,11\,\,a$ $\,21\,\,a^2 +\,24$ $\,21\,\,a^2 +\,24\,\,a$ $\,21\,\,a^2 +\,8$ $\,-21\,\,a^2 +\,11\,\,a$ $\,21\,\,a^2 \,-24$

$(\,-4\,-4\,a)\,\times\,\,6\,a = $   ?

$\,2\,\,a +\,2\,\,a^2$ $\,-24\,\,a +\,2\,a$ $\,24\,\,a \,-24\,a$ $\,-24\,\,a +\,24\,a$ $\,-24\,\,a \,-24\,\,a^2$ $\,-24\,\,a \,-4\,a$

$\,-6\,t\;(\,-4\,-8\,x) = $   ?

$\,24\,\,t \,-48\,x$ $\,24\,\,t +\,48\,x$ $\,-24\,\,t \,-14\,x$ $\,-10\,\,t \,-14\,\,t\,x$ $\,24\,\,t \,-8\,x$ $\,24\,\,t +\,48\,\,t\,x$

$(\,8\,y\,-6)\,\times\,(\,-3\,) = $   ?

$\,-24\,\,y +\,6$ $\,-24\,\,y \,-18$ $\,-24\,\,y \,-9$ $\,-24\,\,y +\,18$ $\,5\,\,y \,-9$ $\,-24\,\,y \,-6$

$(\,x+\,9\,y)\,\times\,\,4\,x = $   ?

$\,4\,\,x^2 +\,36\,\,x\,y$ $\,-4\,x +\,36\,\,x\,y$ $\,5\,\,x^2 +\,13\,\,x\,y$ $\,4\,\,x^2 +\,9\,y$ $\,4\,\,x^2 \,-36\,y$ $\,4\,\,x^2 +\,13\,\,x\,y$

$\,2\;(\,a+\,9\,b) = $   ?

$\,2\,\,a +\,11\,\,b$ $\,2\,\,a \,-9\,\,b$ $\,2\,\,a +\,18\,\,b$ $\,2\,\,a +\,9\,b$ $\,2\,\,a \,-18\,\,b$ $\,3\,\,a +\,11\,\,b$

$(\,3\,a+\,1)\,\times\,\,5\,b = $   ?

$\,15\,\,a\,b +\,5\,\,b$ $\,15\,\,a\,b +\,1$ $\,8\,\,a\,b +\,6\,\,b$ $\,-15\,\,a\,b +\,6\,\,b$ $\,15\,a +\,5\,\,b$ $\,15\,\,a\,b \,-5$

$\,6\,a\;(\,-8\,a\,-7\,b) = $   ?

$\,-2\,\,a^2 \,-\,\,a\,b$ $\,48\,\,a^2 \,-42\,b$ $\,-48\,\,a^2 +\,42\,b$ $\,-48\,\,a^2 \,-\,b$ $\,-48\,\,a^2 \,-7\,b$ $\,-48\,\,a^2 \,-42\,\,a\,b$