$(\,-2\,t+\,6)\,\times\,\,2 = $   ?

$\,-4\,\,t \,-6$ $\,0\,\,t +\,8$ $\,-4\,\,t +\,12$ $\,-4\,\,t +\,8$ $\,-4\,\,t +\,6$ $\,-4\,\,t \,-12$

$(\,-8\,-6\,y)\,\times\,\,6 = $   ?

$\,-48 \,-36\,\,y$ $\,48 $ $\,-48 +\,36\,\,y$ $\,-48 +\,6\,\,y$ $\,-48 \,-6\,y$ $\,-2 $

$(\,-5\,x\,-1)\,\times\,(\,-6\,) = $   ?

$\,-11\,\,x \,-7$ $\,30\,\,x \,-7$ $\,30\,\,x \,-6$ $\,30\,\,x \,-1$ $\,30\,\,x +\,6$ $\,30\,\,x +\,1$

$\,4\,a\;(\,4\,b+\,7) = $   ?

$\,16\,\,a\,b \,-28$ $\,16\,\,a\,b +\,28\,\,a$ $\,16\,\,a\,b +\,7$ $\,-16\,\,a\,b +\,28$ $\,16\,\,a\,b +\,11\,\,a$ $\,8\,\,a\,b +\,11\,\,a$

$\,4\,a\;(\,8\,a+\,5\,b) = $   ?

$\,32\,\,a^2 +\,9\,\,a\,b$ $\,12\,\,a^2 +\,9\,\,a\,b$ $\,-32\,a +\,20\,\,a\,b$ $\,32\,\,a^2 \,-20\,b$ $\,32\,\,a^2 +\,5\,b$ $\,32\,\,a^2 +\,20\,\,a\,b$

$(\,-5\,-8\,a)\,\times\,(\,-3\,b\,) = $   ?

$\,-15 +\,24\,\,a\,b$ $\,-8\,\,b \,-11\,\,a\,b$ $\,15\,\,b \,-11\,a$ $\,15\,\,b +\,24\,\,a\,b$ $\,15\,\,b \,-24\,a$ $\,15\,\,b \,-8\,a$

$\,2\,t\;(\,4+\,2\,t) = $   ?

$\,8\,\,t +\,4\,\,t^2$ $\,6\,\,t +\,4\,\,t^2$ $\,8\,\,t \,-4\,t$ $\,-8 +\,4\,\,t^2$ $\,8\,\,t +\,2\,t$

$\,3\,b\;(\,-5\,b+\,6) = $   ?

$\,-2\,\,b^2 +\,9\,\,b$ $\,-15\,\,b^2 +\,9\,\,b$ $\,-15\,\,b^2 +\,18\,\,b$ $\,-15\,\,b^2 \,-18$ $\,-15\,\,b^2 +\,6$ $\,15\,b +\,18\,\,b$

$\,2\,y\;(\,-8\,y+\,9\,x) = $   ?

$\,-16\,\,y^2 +\,18\,\,x\,y$ $\,16\,\,y^2 +\,18\,x$ $\,-6\,\,y^2 +\,11\,\,x\,y$ $\,-16\,\,y^2 \,-18\,x$ $\,-16\,\,y^2 +\,9\,x$ $\,-16\,\,y^2 +\,11\,\,x\,y$

$\,5\;(\,-8\,a+\,3\,b) = $   ?

$\,-40\,\,a \,-15\,\,b$ $\,-40\,\,a \,-3\,\,b$ $\,-3\,\,a +\,8\,\,b$ $\,-40\,\,a +\,3\,b$ $\,40\,\,a +\,8\,\,b$ $\,-40\,\,a +\,15\,\,b$