$\,3\;(\,-6+\,a) = $   ?

$\,-18 +\,a$ $\,-3 +\,4\,\,a$ $\,-18 \,-\,\,a$ $\,-18 \,-3\,\,a$ $\,-18 +\,3\,\,a$ $\,18 +\,4\,\,a$

$\,3\;(\,6\,y\,-8) = $   ?

$\,9\,\,y \,-5$ $\,-18\,\,y \,-5$ $\,18\,\,y +\,24$ $\,18\,\,y \,-24$ $\,18\,\,y +\,8$ $\,18\,\,y \,-8$

$\,5\,b\;(\,-9+\,6\,b) = $   ?

$\,-4\,\,b +\,11\,\,b^2$ $\,-45\,\,b +\,30\,\,b^2$ $\,-45\,\,b +\,6\,b$ $\,45\,\,b +\,11\,\,b^2$ $\,-45\,\,b \,-30\,b$ $\,-45\,\,b +\,30\,b$

$(\,-\,a\,-9\,b)\,\times\,\,5\,a = $   ?

$\,-5\,a \,-45\,\,a\,b$ $\,-5\,\,a^2 \,-9\,b$ $\,5\,\,a^2 \,-4\,b$ $\,-5\,\,a^2 \,-45\,\,a\,b$ $\,-5\,\,a^2 +\,45\,b$ $\,4\,\,a^2 \,-4\,\,a\,b$

$(\,-8\,-9\,y)\,\times\,(\,-6\,) = $   ?

$\,-48 \,-15\,y$ $\,48 +\,9\,\,y$ $\,48 \,-9\,y$ $\,-14 \,-15\,\,y$ $\,48 +\,54\,\,y$ $\,48 \,-54\,\,y$

$(\,-2\,t\,-8\,x)\,\times\,\,4 = $   ?

$\,2\,\,t \,-4\,\,x$ $\,-8\,\,t +\,32\,\,x$ $\,-8\,\,t \,-4\,x$ $\,-8\,\,t \,-8\,x$ $\,-8\,\,t +\,8\,\,x$ $\,-8\,\,t \,-32\,\,x$

$(\,8+\,4\,b)\,\times\,\,3\,a = $   ?

$\,24\,\,a +\,12\,b$ $\,11\,\,a +\,7\,\,a\,b$ $\,24\,\,a \,-12\,b$ $\,24\,\,a +\,4\,b$ $\,-24\,\,a +\,7\,\,a\,b$ $\,24\,\,a +\,12\,\,a\,b$

$\,3\,t\;(\,t+\,6\,x) = $   ?

$\,3\,t +\,18\,\,t\,x$ $\,3\,\,t^2 \,-18\,x$ $\,4\,\,t^2 +\,9\,\,t\,x$ $\,3\,\,t^2 +\,18\,\,t\,x$ $\,3\,\,t^2 +\,6\,x$ $\,-3\,\,t^2 +\,9\,\,t\,x$

$\,-2\,x\;(\,-7+\,6\,y) = $   ?

$\,14\,\,x +\,6\,y$ $\,-14\,\,x \,-12\,y$ $\,-9\,\,x +\,4\,\,x\,y$ $\,14\,\,x +\,12\,y$ $\,14 \,-4\,\,x\,y$ $\,14\,\,x \,-12\,\,x\,y$

$\,4\,b\;(\,3\,b+\,7) = $   ?

$\,-12\,\,b^2 +\,11\,\,b$ $\,12\,\,b^2 +\,28$ $\,12\,\,b^2 +\,7$ $\,12\,\,b^2 \,-28$ $\,7\,\,b^2 +\,11\,\,b$ $\,12\,\,b^2 +\,28\,\,b$