$(\,-5\,x+\,4)\,\times\,\,3 = $   ?

$\,-2\,\,x +\,7$ $\,-15\,\,x +\,12$ $\,-15\,\,x \,-12$ $\,15\,\,x +\,7$ $\,-15\,\,x +\,4$ $\,-15\,\,x \,-4$

$(\,1\,-6\,b)\,\times\,\,4 = $   ?

$\,4 \,-24\,\,b$ $\,-4 \,-2\,b$ $\,5 \,-2\,\,b$ $\,4 +\,24\,\,b$ $\,4 +\,6\,\,b$ $\,4 \,-6\,b$

$\,6\,a\;(\,5\,b+\,8) = $   ?

$\,11\,\,a\,b +\,14\,\,a$ $\,30\,\,a\,b +\,14\,\,a$ $\,30\,\,a\,b +\,8$ $\,30\,\,a\,b \,-48$ $\,-30\,b +\,48\,\,a$ $\,30\,\,a\,b +\,48\,\,a$

$\,5\,b\;(\,8\,b\,-2) = $   ?

$\,13\,\,b^2 +\,3\,\,b$ $\,-40\,b \,-10\,\,b$ $\,40\,\,b^2 \,-2$ $\,40\,\,b^2 +\,10$ $\,40\,\,b^2 +\,3$ $\,40\,\,b^2 \,-10\,\,b$

$\,6\,x\;(\,3\,x+\,7\,y) = $   ?

$\,18\,\,x^2 +\,42\,\,x\,y$ $\,9\,\,x^2 +\,13\,\,x\,y$ $\,18\,\,x^2 \,-42\,y$ $\,-18\,x +\,42\,\,x\,y$ $\,18\,\,x^2 +\,13\,\,x\,y$ $\,18\,\,x^2 +\,7\,y$

$\,-5\;(\,-8\,-\,x) = $   ?

$\,40 +\,\,x$ $\,40 \,-5\,\,x$ $\,40 \,-\,x$ $\,40 \,-6\,x$ $\,-13 \,-6\,\,x$ $\,40 +\,5\,\,x$

$\,-3\,a\;(\,-9\,-4\,b) = $   ?

$\,27\,\,a \,-12\,b$ $\,27\,\,a \,-4\,b$ $\,27\,\,a \,-7\,b$ $\,27\,\,a +\,12\,\,a\,b$ $\,-12\,\,a \,-7\,\,a\,b$ $\,-27\,\,a +\,12\,b$

$(\,3\,t\,-2\,x)\,\times\,\,4 = $   ?

$\,12\,\,t \,-8\,\,x$ $\,12\,\,t +\,8\,\,x$ $\,12\,\,t +\,2\,\,x$ $\,12\,\,t +\,2\,x$ $\,7\,\,t +\,2\,\,x$ $\,12\,\,t \,-2\,x$

$\,5\,x\;(\,2\,x+\,4\,y) = $   ?

$\,10\,\,x^2 +\,20\,\,x\,y$ $\,10\,\,x^2 +\,4\,y$ $\,7\,\,x^2 +\,9\,\,x\,y$ $\,10\,\,x^2 +\,9\,\,x\,y$ $\,10\,\,x^2 \,-20\,y$ $\,-10\,x +\,20\,\,x\,y$

$(\,6\,t+\,4)\,\times\,\,5\,t = $   ?

$\,30\,\,t^2 +\,9\,\,t$ $\,11\,\,t^2 +\,9\,\,t$ $\,30\,\,t^2 +\,4$ $\,30\,\,t^2 \,-20$ $\,-30\,t +\,20\,\,t$ $\,30\,\,t^2 +\,20\,\,t$