$\,4\;(\,2+\,3\,t) = $   ?

$\,8 \,-3\,\,t$ $\,8 +\,3\,t$ $\,8 \,-12\,\,t$ $\,8 +\,12\,\,t$ $\,6 +\,7\,\,t$ $\,-8 +\,7\,\,t$

$\,4\;(\,8\,-2\,a) = $   ?

$\,32 \,-2\,a$ $\,32 \,-8\,\,a$ $\,12 +\,2\,\,a$ $\,32 +\,2\,\,a$ $\,32 +\,8\,\,a$ $\,32 +\,2\,a$

$\,-6\,t\;(\,-9\,x+\,2) = $   ?

$\,54\,\,t\,x \,-12$ $\,54\,\,t\,x \,-12\,\,t$ $\,54\,\,t\,x +\,2$ $\,-15\,\,t\,x \,-4\,\,t$ $\,54\,\,t\,x +\,12$ $\,-54\,x +\,4\,\,t$

$\,5\,b\;(\,4\,b+\,8\,a) = $   ?

$\,20\,\,b^2 \,-40\,a$ $\,-20\,\,b^2 +\,13\,\,a\,b$ $\,20\,\,b^2 +\,40\,\,a\,b$ $\,20\,\,b^2 +\,40\,a$ $\,9\,\,b^2 +\,13\,\,a\,b$ $\,20\,\,b^2 +\,8\,a$

$\,4\,b\;(\,5+\,6\,b) = $   ?

$\,20\,\,b +\,24\,\,b^2$ $\,-20 +\,24\,\,b^2$ $\,20\,\,b +\,6\,b$ $\,9\,\,b +\,10\,\,b^2$ $\,20\,\,b \,-24\,b$ $\,20\,\,b +\,10\,\,b^2$

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

$\,-9\,\,x^2 \,-\,y$ $\,-9\,x \,-3\,\,x\,y$ $\,-9\,\,x^2 \,-3\,\,x\,y$ $\,9\,\,x^2 +\,2\,y$ $\,-9\,\,x^2 +\,3\,y$ $\,0\,\,x^2 +\,2\,\,x\,y$

$(\,4\,x+\,9\,y)\,\times\,\,2 = $   ?

$\,8\,\,x +\,9\,y$ $\,6\,\,x +\,11\,\,y$ $\,8\,\,x +\,11\,\,y$ $\,8\,\,x \,-9\,\,y$ $\,8\,\,x +\,18\,\,y$ $\,8\,\,x \,-18\,\,y$

$(\,-9\,-6\,b)\,\times\,(\,-6\,) = $   ?

$\,54 \,-6\,b$ $\,-15 \,-12\,\,b$ $\,54 \,-12\,b$ $\,54 +\,36\,\,b$ $\,54 \,-36\,\,b$ $\,54 +\,6\,\,b$

$(\,-9\,a+\,4)\,\times\,\,3\,a = $   ?

$\,-27\,\,a^2 \,-12$ $\,-6\,\,a^2 +\,7\,\,a$ $\,-27\,\,a^2 +\,4$ $\,-27\,\,a^2 +\,7\,\,a$ $\,-27\,\,a^2 +\,12\,\,a$ $\,27\,\,a^2 +\,12$

$\,6\,a\;(\,-4\,b+\,6) = $   ?

$\,-24\,\,a\,b +\,36\,\,a$ $\,-24\,\,a\,b \,-36$ $\,24\,b +\,36\,\,a$ $\,-24\,\,a\,b +\,12\,\,a$ $\,2\,\,a\,b +\,12\,\,a$ $\,-24\,\,a\,b +\,6$