$\,2\;(\,7+\,9\,x) = $   ?

$\,9 +\,11\,\,x$ $\,14 \,-18\,\,x$ $\,14 \,-9\,\,x$ $\,14 +\,18\,\,x$ $\,14 +\,9\,x$ $\,-14 +\,11\,\,x$

$\,2\;(\,-7\,-8\,x) = $   ?

$\,14 \,-6\,x$ $\,-14 +\,16\,\,x$ $\,-14 \,-16\,\,x$ $\,-14 \,-8\,x$ $\,-14 +\,8\,\,x$ $\,-5 \,-6\,\,x$

$\,5\,a\;(\,-2\,b+\,7) = $   ?

$\,3\,\,a\,b +\,12\,\,a$ $\,-10\,\,a\,b +\,7$ $\,-10\,\,a\,b \,-35$ $\,-10\,\,a\,b +\,35\,\,a$ $\,10\,\,a\,b +\,12\,\,a$ $\,-10\,\,a\,b +\,35$

$\,-2\,a\;(\,-8\,b\,-8) = $   ?

$\,-10\,\,a\,b \,-10\,\,a$ $\,16\,\,a\,b \,-8$ $\,16\,\,a\,b +\,16\,\,a$ $\,16\,\,a\,b \,-10$ $\,16\,\,a\,b \,-16$ $\,-16\,\,a\,b +\,16$

$\,4\,y\;(\,9+\,6\,y) = $   ?

$\,36\,\,y +\,24\,y$ $\,36\,\,y +\,6\,y$ $\,-36\,\,y +\,10\,\,y^2$ $\,36\,\,y +\,24\,\,y^2$ $\,36\,\,y \,-24\,y$ $\,13\,\,y +\,10\,\,y^2$

$(\,-1\,-\,x)\,\times\,(\,-5\,) = $   ?

$\,-6 \,-6\,\,x$ $\,5 +\,\,x$ $\,5 \,-\,x$ $\,5 \,-5\,\,x$ $\,-5 \,-6\,x$ $\,5 +\,5\,\,x$

$(\,-\,y+\,8)\,\times\,\,4\,y = $   ?

$\,3\,\,y^2 +\,12\,\,y$ $\,-4\,\,y^2 +\,8$ $\,4\,\,y^2 +\,12\,\,y$ $\,-4\,\,y^2 +\,32\,\,y$ $\,-4\,y +\,32\,\,y$ $\,-4\,\,y^2 \,-32$

$\,6\,t\;(\,6\,t+\,x) = $   ?

$\,36\,\,t^2 +\,6\,\,t\,x$ $\,36\,\,t^2 \,-6\,x$ $\,12\,\,t^2 +\,7\,\,t\,x$ $\,-36\,\,t^2 +\,7\,\,t\,x$ $\,36\,\,t^2 +\,x$ $\,36\,\,t^2 +\,6\,x$

$(\,4\,b+\,5\,a)\,\times\,\,3\,b = $   ?

$\,7\,\,b^2 +\,8\,\,a\,b$ $\,-12\,b +\,15\,\,a\,b$ $\,12\,\,b^2 +\,15\,\,a\,b$ $\,12\,\,b^2 +\,8\,\,a\,b$ $\,12\,\,b^2 +\,5\,a$ $\,12\,\,b^2 \,-15\,a$

$(\,7\,t\,-3\,x)\,\times\,\,6 = $   ?

$\,42\,\,t +\,18\,\,x$ $\,42\,\,t \,-3\,x$ $\,13\,\,t +\,3\,\,x$ $\,42\,\,t \,-18\,\,x$ $\,42\,\,t +\,3\,x$ $\,42\,\,t +\,3\,\,x$