$\,6\;(\,-7\,t+\,1) = $   ?

$\,-42\,\,t +\,1$ $\,-\,\,t +\,7$ $\,-42\,\,t \,-6$ $\,-42\,\,t +\,6$ $\,42\,\,t +\,7$ $\,-42\,\,t \,-1$

$\,6\;(\,5\,y\,-1) = $   ?

$\,30\,\,y +\,1$ $\,11\,\,y +\,5$ $\,30\,\,y +\,6$ $\,30\,\,y \,-1$ $\,30\,\,y +\,5$ $\,30\,\,y \,-6$

$\,2\,b\;(\,2\,b+\,3) = $   ?

$\,-4\,\,b^2 +\,6$ $\,4\,\,b^2 +\,3$ $\,4\,\,b^2 +\,5\,\,b$ $\,4\,\,b^2 \,-6$ $\,4\,\,b^2 +\,6\,\,b$ $\,4\,\,b^2 +\,5\,\,b$

$\,-4\,x\;(\,2\,-8\,y) = $   ?

$\,-8\,\,x \,-32\,y$ $\,-8\,\,x +\,32\,\,x\,y$ $\,8\,\,x \,-12\,y$ $\,-2\,\,x \,-12\,\,x\,y$ $\,-8\,\,x +\,32\,y$ $\,-8\,\,x \,-8\,y$

$(\,-8\,-8\,y)\,\times\,\,2\,y = $   ?

$\,-16\,\,y +\,16\,y$ $\,-6\,\,y \,-6\,\,y^2$ $\,16 \,-16\,\,y^2$ $\,-16\,\,y \,-8\,y$ $\,-16\,\,y \,-6\,y$ $\,-16\,\,y \,-16\,\,y^2$

$(\,-7\,x\,-9)\,\times\,(\,-4\,) = $   ?

$\,28\,\,x +\,9$ $\,28\,\,x +\,36$ $\,28\,\,x \,-36$ $\,28\,\,x \,-9$ $\,-11\,\,x \,-13$ $\,-28\,\,x \,-13$

$\,4\,t\;(\,6\,t\,-7\,x) = $   ?

$\,24\,\,t^2 \,-7\,x$ $\,24\,t \,-28\,\,t\,x$ $\,10\,\,t^2 \,-3\,\,t\,x$ $\,-24\,\,t^2 \,-3\,x$ $\,24\,\,t^2 +\,28\,x$ $\,24\,\,t^2 \,-28\,\,t\,x$

$\,4\;(\,-9\,t\,-3\,x) = $   ?

$\,36\,\,t +\,x$ $\,-36\,\,t \,-12\,\,x$ $\,-36\,\,t +\,3\,\,x$ $\,-36\,\,t \,-3\,x$ $\,-36\,\,t +\,12\,\,x$ $\,-5\,\,t +\,\,x$

$(\,2\,y+\,8)\,\times\,\,4\,x = $   ?

$\,-8\,\,x\,y +\,12\,\,x$ $\,8\,\,x\,y +\,8$ $\,8\,\,x\,y +\,32$ $\,6\,\,x\,y +\,12\,\,x$ $\,8\,\,x\,y +\,32\,\,x$ $\,8\,\,x\,y \,-32$

$(\,-2\,a+\,4\,b)\,\times\,\,6\,a = $   ?

$\,-12\,\,a^2 +\,24\,\,a\,b$ $\,-12\,\,a^2 \,-24\,b$ $\,12\,\,a^2 +\,10\,\,a\,b$ $\,-12\,\,a^2 +\,4\,b$ $\,4\,\,a^2 +\,10\,\,a\,b$ $\,-12\,a +\,24\,\,a\,b$