$\,3\;(\,5\,y+\,3) = $   ?

$\,15\,\,y \,-3$ $\,15\,\,y +\,9$ $\,15\,\,y +\,3$ $\,15\,\,y \,-9$ $\,8\,\,y +\,6$ $\,15\,\,y +\,6$

$(\,7\,x\,-1)\,\times\,\,6 = $   ?

$\,-42\,\,x +\,5$ $\,42\,\,x \,-6$ $\,42\,\,x +\,1$ $\,13\,\,x +\,5$ $\,42\,\,x \,-1$ $\,42\,\,x +\,6$

$\,-3\;(\,9\,y\,-2) = $   ?

$\,-27\,\,y +\,6$ $\,-27\,\,y \,-6$ $\,-27\,\,y +\,2$ $\,-27\,\,y \,-5$ $\,6\,\,y \,-5$ $\,-27\,\,y \,-2$

$(\,8\,b+\,2\,a)\,\times\,\,2\,b = $   ?

$\,16\,\,b^2 \,-4\,a$ $\,16\,\,b^2 +\,4\,\,a\,b$ $\,10\,\,b^2 +\,4\,\,a\,b$ $\,16\,\,b^2 +\,2\,a$ $\,16\,\,b^2 +\,4\,a$

$\,5\,t\;(\,-6+\,2\,x) = $   ?

$\,30\,\,t +\,7\,\,t\,x$ $\,-30\,\,t +\,10\,\,t\,x$ $\,-\,\,t +\,7\,\,t\,x$ $\,-30\,\,t \,-10\,x$ $\,-30\,\,t +\,2\,x$ $\,-30 +\,10\,\,t\,x$

$(\,-8\,t\,-\,x)\,\times\,\,6\,t = $   ?

$\,-48\,\,t^2 +\,5\,x$ $\,48\,t \,-6\,\,t\,x$ $\,-48\,\,t^2 \,-\,x$ $\,-2\,\,t^2 +\,5\,\,t\,x$ $\,-48\,\,t^2 \,-6\,\,t\,x$ $\,-48\,\,t^2 +\,6\,x$

$\,4\,x\;(\,4+\,5\,x) = $   ?

$\,-16\,\,x +\,9\,\,x^2$ $\,8\,\,x +\,9\,\,x^2$ $\,16\,\,x \,-20\,x$ $\,16\,\,x +\,20\,x$ $\,16\,\,x +\,5\,x$ $\,16\,\,x +\,20\,\,x^2$

$\,6\;(\,5\,t+\,4\,x) = $   ?

$\,30\,\,t +\,10\,\,x$ $\,11\,\,t +\,10\,\,x$ $\,30\,\,t +\,24\,\,x$ $\,30\,\,t +\,4\,x$ $\,30\,\,t \,-24\,\,x$ $\,30\,\,t \,-4\,\,x$

$(\,2\,y\,-8)\,\times\,(\,-5\,x\,) = $   ?

$\,-10\,\,x\,y +\,40\,\,x$ $\,-10\,\,x\,y +\,40$ $\,10\,\,x\,y \,-13$ $\,-10\,\,x\,y \,-8$ $\,-10\,\,x\,y \,-40$ $\,-3\,\,x\,y \,-13\,\,x$

$\,2\,x\;(\,3+\,9\,x) = $   ?

$\,6\,\,x +\,18\,\,x^2$ $\,6\,\,x +\,18\,x$ $\,-6\,\,x +\,11\,\,x^2$ $\,6\,\,x \,-18\,x$ $\,6\,\,x +\,9\,x$ $\,5\,\,x +\,11\,\,x^2$