$(\,-5\,b+\,2)\,\times\,\,5 = $   ?

$\,-25\,\,b \,-2$ $\,-25\,\,b \,-10$ $\,-25\,\,b +\,10$ $\,25\,\,b +\,7$ $\,0\,\,b +\,7$ $\,-25\,\,b +\,2$

$\,3\;(\,-8\,b\,-2) = $   ?

$\,24\,\,b +\,1$ $\,-24\,\,b +\,2$ $\,-24\,\,b \,-6$ $\,-5\,\,b +\,1$ $\,-24\,\,b \,-2$ $\,-24\,\,b +\,6$

$\,-3\;(\,6\,a\,-7) = $   ?

$\,-18\,\,a \,-21$ $\,-18\,\,a +\,21$ $\,18\,\,a \,-10$ $\,-18\,\,a +\,7$ $\,-18\,\,a \,-7$ $\,3\,\,a \,-10$

$\,5\;(\,8\,x+\,3\,y) = $   ?

$\,40\,\,x +\,3\,y$ $\,40\,\,x \,-15\,\,y$ $\,40\,\,x +\,15\,\,y$ $\,13\,\,x +\,8\,\,y$ $\,40\,\,x \,-3\,\,y$ $\,-40\,\,x +\,8\,\,y$

$\,6\,y\;(\,-8\,y\,-3\,x) = $   ?

$\,-48\,\,y^2 \,-18\,\,x\,y$ $\,-2\,\,y^2 +\,3\,\,x\,y$ $\,-48\,\,y^2 \,-3\,x$ $\,-48\,\,y^2 +\,18\,x$ $\,48\,y \,-18\,\,x\,y$ $\,-48\,\,y^2 +\,3\,x$

$\,5\,a\;(\,6\,b+\,9) = $   ?

$\,11\,\,a\,b +\,14\,\,a$ $\,30\,\,a\,b +\,14\,\,a$ $\,30\,\,a\,b \,-45$ $\,30\,\,a\,b +\,9$ $\,-30\,b +\,45\,\,a$ $\,30\,\,a\,b +\,45\,\,a$

$(\,1\,-6\,x)\,\times\,\,5\,x = $   ?

$\,5\,\,x \,-6\,x$ $\,6\,\,x \,-\,\,x^2$ $\,-5\,\,x \,-\,x$ $\,5\,\,x \,-30\,\,x^2$ $\,5\,\,x +\,30\,x$ $\,5\,\,x \,-30\,x$

$\,-4\,x\;(\,5\,-2\,y) = $   ?

$\,-20\,\,x \,-2\,y$ $\,-20\,\,x +\,8\,\,x\,y$ $\,-20 +\,8\,\,x\,y$ $\,-20\,\,x \,-8\,y$ $\,\,x \,-6\,\,x\,y$ $\,20\,\,x \,-6\,y$

$(\,4\,t+\,7)\,\times\,\,5\,t = $   ?

$\,-20\,\,t^2 +\,35$ $\,20\,\,t^2 +\,12\,\,t$ $\,9\,\,t^2 +\,12\,\,t$ $\,20\,\,t^2 +\,7$ $\,20\,\,t^2 +\,35\,\,t$ $\,20\,\,t^2 \,-35$

$(\,4\,t+\,x)\,\times\,\,2\,t = $   ?

$\,8\,\,t^2 +\,2\,\,t\,x$ $\,-8\,t +\,2\,\,t\,x$ $\,8\,\,t^2 \,-2\,x$ $\,6\,\,t^2 +\,3\,\,t\,x$ $\,8\,\,t^2 +\,3\,\,t\,x$ $\,8\,\,t^2 +\,x$