$\,2\;(\,-8+\,7\,a) = $   ?

$\,-6 +\,9\,\,a$ $\,-16 \,-14\,\,a$ $\,-16 \,-7\,\,a$ $\,16 +\,9\,\,a$ $\,-16 +\,7\,a$ $\,-16 +\,14\,\,a$

$\,2\;(\,9\,-5\,b) = $   ?

$\,18 \,-5\,b$ $\,18 +\,5\,\,b$ $\,18 +\,10\,\,b$ $\,11 \,-3\,\,b$ $\,18 \,-10\,\,b$ $\,-18 \,-3\,b$

$(\,9+\,2\,b)\,\times\,\,5\,b = $   ?

$\,45\,\,b +\,7\,\,b^2$ $\,45\,\,b \,-10\,b$ $\,45\,\,b +\,2\,b$ $\,-45 +\,10\,\,b^2$ $\,45\,\,b +\,10\,\,b^2$ $\,14\,\,b +\,7\,\,b^2$

$\,2\;(\,6\,y+\,5\,x) = $   ?

$\,12\,\,y \,-5\,\,x$ $\,-12\,\,y +\,7\,\,x$ $\,12\,\,y +\,10\,\,x$ $\,12\,\,y \,-10\,\,x$ $\,12\,\,y +\,5\,x$ $\,8\,\,y +\,7\,\,x$

$\,5\,a\;(\,6\,a+\,6\,b) = $   ?

$\,30\,\,a^2 +\,11\,\,a\,b$ $\,11\,\,a^2 +\,11\,\,a\,b$ $\,30\,\,a^2 +\,30\,\,a\,b$ $\,30\,\,a^2 +\,6\,b$ $\,-30\,a +\,30\,\,a\,b$ $\,30\,\,a^2 \,-30\,b$

$(\,-\,a\,-8)\,\times\,(\,-3\,) = $   ?

$\,3\,\,a +\,8$ $\,3\,\,a \,-11$ $\,3\,\,a \,-24$ $\,3\,\,a \,-8$ $\,-4\,\,a \,-11$ $\,3\,\,a +\,24$

$\,3\,a\;(\,-3\,a+\,2\,b) = $   ?

$\,-9\,\,a^2 +\,6\,\,a\,b$ $\,-9\,\,a^2 +\,2\,b$ $\,-9\,\,a^2 \,-6\,b$ $\,-9\,\,a^2 +\,6\,b$ $\,0\,\,a^2 +\,5\,\,a\,b$ $\,9\,\,a^2 +\,5\,\,a\,b$

$\,5\,b\;(\,2+\,4\,a) = $   ?

$\,-10\,\,b +\,9\,\,a\,b$ $\,10\,\,b +\,20\,a$ $\,10\,\,b \,-20\,a$ $\,10\,\,b +\,4\,a$ $\,7\,\,b +\,9\,\,a\,b$ $\,10\,\,b +\,20\,\,a\,b$

$(\,9\,y+\,3)\,\times\,(\,-6\,x\,) = $   ?

$\,54\,y +\,3\,\,x$ $\,-54\,y \,-18\,\,x$ $\,3\,\,x\,y \,-3\,\,x$ $\,-54\,\,x\,y +\,3$ $\,-54\,\,x\,y \,-18\,\,x$ $\,-54\,\,x\,y +\,18$

$(\,-\,t\,-3)\,\times\,\,4\,t = $   ?

$\,4\,\,t^2 +\,1$ $\,3\,\,t^2 +\,\,t$ $\,-4\,t \,-12\,\,t$ $\,-4\,\,t^2 \,-12\,\,t$ $\,-4\,\,t^2 +\,12$ $\,-4\,\,t^2 \,-3$