$(\,-8\,y+\,5)\,\times\,\,4 = $   ?

$\,-32\,\,y +\,20$ $\,-32\,\,y +\,5$ $\,-32\,\,y \,-5$ $\,-4\,\,y +\,9$ $\,-32\,\,y \,-20$ $\,-32\,\,y +\,9$

$\,5\;(\,b\,-9) = $   ?

$\,5\,\,b \,-45$ $\,5\,\,b \,-9$ $\,5\,\,b +\,9$ $\,5\,\,b \,-4$ $\,5\,\,b +\,45$ $\,6\,\,b \,-4$

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

$\,-4\,\,t\,x \,-10\,\,t$ $\,4\,\,t\,x \,-16$ $\,4\,\,t\,x \,-8$ $\,4\,\,t\,x +\,16\,\,t$ $\,-4\,\,t\,x \,-10$ $\,4\,\,t\,x +\,16$

$(\,2\,t\,-9\,x)\,\times\,\,4\,t = $   ?

$\,8\,\,t^2 \,-5\,x$ $\,8\,\,t^2 +\,36\,x$ $\,8\,\,t^2 \,-9\,x$ $\,6\,\,t^2 \,-5\,\,t\,x$ $\,-8\,\,t^2 \,-36\,x$ $\,8\,\,t^2 \,-36\,\,t\,x$

$\,5\;(\,-3\,b\,-9\,a) = $   ?

$\,-15\,\,b +\,45\,\,a$ $\,-15\,\,b \,-9\,a$ $\,15\,\,b \,-4\,a$ $\,-15\,\,b \,-45\,\,a$ $\,2\,\,b \,-4\,\,a$ $\,-15\,\,b +\,9\,\,a$

$\,4\,x\;(\,-7\,x+\,4\,y) = $   ?

$\,-28\,\,x^2 \,-16\,y$ $\,-28\,\,x^2 +\,4\,y$ $\,-28\,\,x^2 +\,16\,\,x\,y$ $\,-28\,\,x^2 +\,8\,\,x\,y$ $\,-3\,\,x^2 +\,8\,\,x\,y$ $\,28\,x +\,16\,\,x\,y$

$\,-2\;(\,-5\,t\,-3) = $   ?

$\,10\,\,t \,-6$ $\,-7\,\,t \,-5$ $\,10\,\,t +\,3$ $\,10\,\,t +\,6$ $\,-10\,\,t \,-5$ $\,10\,\,t \,-3$

$\,2\,x\;(\,3\,y+\,4) = $   ?

$\,6\,\,x\,y +\,4$ $\,5\,\,x\,y +\,6\,\,x$ $\,-6\,y +\,8\,\,x$ $\,6\,\,x\,y \,-8$ $\,6\,\,x\,y +\,8\,\,x$ $\,6\,\,x\,y +\,6\,\,x$

$(\,-1+\,y)\,\times\,\,4\,y = $   ?

$\,-4\,\,y \,-4\,y$ $\,-4\,\,y +\,4\,\,y^2$ $\,4\,\,y +\,5\,\,y^2$ $\,3\,\,y +\,5\,\,y^2$ $\,-4 +\,4\,\,y^2$ $\,-4\,\,y +\,y$

$\,4\,t\;(\,t+\,5) = $   ?

$\,4\,\,t^2 +\,5$ $\,-4\,\,t^2 +\,9\,\,t$ $\,5\,\,t^2 +\,9\,\,t$ $\,4\,t +\,20\,\,t$ $\,4\,\,t^2 \,-20$ $\,4\,\,t^2 +\,20\,\,t$