$(\,-4\,b+\,8)\,\times\,\,5 = $   ?

$\,-20\,\,b +\,8$ $\,-20\,\,b +\,13$ $\,-20\,\,b \,-40$ $\,-20\,\,b \,-8$ $\,\,b +\,13$ $\,-20\,\,b +\,40$

$\,6\;(\,8\,x\,-7) = $   ?

$\,48\,\,x \,-42$ $\,-48\,\,x \,-1$ $\,48\,\,x +\,7$ $\,14\,\,x \,-1$ $\,48\,\,x +\,42$ $\,48\,\,x \,-7$

$\,5\,t\;(\,-4\,t+\,9) = $   ?

$\,-20\,\,t^2 \,-45$ $\,\,t^2 +\,14\,\,t$ $\,20\,\,t^2 +\,14\,\,t$ $\,-20\,\,t^2 +\,9$ $\,-20\,\,t^2 +\,45$ $\,-20\,\,t^2 +\,45\,\,t$

$(\,-3\,t+\,7\,x)\,\times\,\,5\,t = $   ?

$\,2\,\,t^2 +\,12\,\,t\,x$ $\,15\,\,t^2 +\,12\,\,t\,x$ $\,-15\,\,t^2 +\,7\,x$ $\,-15\,\,t^2 +\,35\,\,t\,x$ $\,-15\,\,t^2 \,-35\,x$ $\,-15\,\,t^2 +\,35\,x$

$(\,3\,x+\,3)\,\times\,(\,-4\,t\,) = $   ?

$\,-12\,\,t\,x +\,3$ $\,-12\,\,t\,x \,-12\,\,t$ $\,12\,x +\,\,t$ $\,-12\,\,t\,x +\,12$ $\,-12\,\,t\,x \,-12$ $\,-\,\,t\,x \,-\,\,t$

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

$\,24\,\,b^2 +\,7\,\,a\,b$ $\,-24\,\,b^2 +\,6\,\,a\,b$ $\,-24\,\,b^2 +\,a$ $\,2\,\,b^2 +\,7\,\,a\,b$ $\,-24\,\,b^2 +\,6\,a$ $\,-24\,\,b^2 \,-6\,a$

$\,3\,b\;(\,-5\,b\,-5) = $   ?

$\,-15\,\,b^2 +\,15$ $\,-15\,\,b^2 \,-15$ $\,-2\,\,b^2 \,-2\,\,b$ $\,15\,\,b^2 \,-2$ $\,-15\,\,b^2 \,-15\,\,b$ $\,-15\,\,b^2 \,-5$

$\,4\,y\;(\,3\,x+\,8) = $   ?

$\,-12\,\,x\,y +\,32$ $\,12\,\,x\,y +\,32\,\,y$ $\,12\,\,x\,y +\,8$ $\,7\,\,x\,y +\,12\,\,y$ $\,12\,\,x\,y \,-32$ $\,12\,\,x\,y +\,12\,\,y$

$\,6\;(\,-4\,x\,-5\,y) = $   ?

$\,-24\,\,x +\,y$ $\,-24\,\,x +\,30\,\,y$ $\,2\,\,x +\,\,y$ $\,-24\,\,x +\,5\,\,y$ $\,-24\,\,x \,-5\,y$ $\,-24\,\,x \,-30\,\,y$

$\,-2\;(\,-3\,-6\,t) = $   ?

$\,-6 \,-8\,t$ $\,6 \,-6\,t$ $\,6 \,-12\,\,t$ $\,6 +\,12\,\,t$ $\,6 +\,6\,\,t$ $\,-5 \,-8\,\,t$