$\,2\;(\,3\,x+\,9) = $   ?

$\,6\,\,x \,-18$ $\,6\,\,x \,-9$ $\,5\,\,x +\,11$ $\,6\,\,x +\,9$ $\,6\,\,x +\,18$ $\,-6\,\,x +\,11$

$\,3\;(\,-\,x\,-8) = $   ?

$\,-3\,\,x +\,8$ $\,-3\,\,x \,-24$ $\,3\,\,x \,-5$ $\,-3\,\,x \,-8$ $\,2\,\,x \,-5$ $\,-3\,\,x +\,24$

$\,4\,b\;(\,-6\,b+\,4) = $   ?

$\,-24\,b +\,16\,\,b$ $\,-24\,\,b^2 +\,4$ $\,-2\,\,b^2 +\,8\,\,b$ $\,-24\,\,b^2 \,-16$ $\,-24\,\,b^2 +\,16\,\,b$ $\,24\,\,b^2 +\,8\,\,b$

$\,6\,a\;(\,-9\,a+\,3\,b) = $   ?

$\,-54\,\,a^2 +\,3\,b$ $\,-54\,\,a^2 +\,9\,\,a\,b$ $\,-54\,\,a^2 \,-18\,b$ $\,-54\,\,a^2 +\,18\,\,a\,b$ $\,54\,\,a^2 +\,18\,b$ $\,-3\,\,a^2 +\,9\,\,a\,b$

$(\,8\,x+\,2)\,\times\,(\,-3\,t\,) = $   ?

$\,-24\,\,t\,x \,-6$ $\,-24\,\,t\,x +\,6$ $\,5\,\,t\,x \,-\,\,t$ $\,-24\,\,t\,x +\,2$ $\,-24\,\,t\,x \,-6\,\,t$ $\,24\,x +\,\,t$

$(\,-2\,y\,-9\,x)\,\times\,\,3 = $   ?

$\,-6\,\,y \,-6\,x$ $\,\,y \,-6\,\,x$ $\,-6\,\,y \,-27\,\,x$ $\,-6\,\,y \,-9\,x$ $\,-6\,\,y +\,27\,\,x$ $\,-6\,\,y +\,9\,\,x$

$(\,-2\,y+\,4\,x)\,\times\,\,4\,y = $   ?

$\,2\,\,y^2 +\,8\,\,x\,y$ $\,-8\,\,y^2 +\,16\,\,x\,y$ $\,-8\,\,y^2 +\,4\,x$ $\,8\,\,y^2 +\,8\,\,x\,y$ $\,-8\,\,y^2 \,-16\,x$ $\,-8\,y +\,16\,\,x\,y$

$\,3\,y\;(\,-7+\,4\,x) = $   ?

$\,-21\,\,y \,-12\,x$ $\,-4\,\,y +\,7\,\,x\,y$ $\,21\,\,y +\,7\,\,x\,y$ $\,-21\,\,y +\,12\,x$ $\,-21\,\,y +\,4\,x$ $\,-21\,\,y +\,12\,\,x\,y$

$(\,4\,-3\,b)\,\times\,(\,-4\,) = $   ?

$\,0 \,-7\,\,b$ $\,-16 \,-3\,b$ $\,-16 +\,3\,\,b$ $\,-16 \,-12\,\,b$ $\,-16 +\,12\,\,b$ $\,-16 \,-7\,b$

$\,4\,a\;(\,-5+\,3\,a) = $   ?

$\,-20\,\,a +\,12\,\,a^2$ $\,-20\,\,a +\,3\,a$ $\,-\,\,a +\,7\,\,a^2$ $\,-20 +\,12\,\,a^2$ $\,20\,\,a +\,7\,\,a^2$ $\,-20\,\,a \,-12\,a$