$\,-5 +\,6\,x \,-4\,y +\,9\,x +\,1=$ ?

$\,15\,x +\,4\,y \,-4$ $\,11\,xy \,-4$ $\,10\,x \,-4\,y +\,1$ $\,15\,x \,-4\,y \,-4$ $\,15\,x \,-4\,y \,-6$

$\,3\,x +\,9 +\,3\,x \,-3 +\,7\,x=$ ?

$\,7\,x \,-12$ $\,13\,x \,-12$ $\,25\,x$ $\,-\,x +\,6$ $\,19\,x$ $\,13\,x +\,6$

$\,6\times \,x \times (\,-4\,) + \,x \times (\,-6\,x\,) =$ ?

$\,-30\,\,x^2$ $\,-6\,\,x^2 +\,24\,x$ $\,-6\,\,x^2 \,-24\,x$ $\,6\,\,x^2 \,-24\,x$ $\,-6\,\,x^2 +\,2\,x$

$\,5\,x \,-4\,y +\,8\,y \,-3\,x=$ ?

$\,2\,x +\,12\,y$ $\,xy +\,5\,yx$ $\,8\,x \,-12\,y$ $\,8\,x +\,4\,y$ $\,2\,x +\,4\,y$

$\,-6 +\,8\times\,7\,x +\,7 =$ ?

$\,56\,x \,-13$ $\,-56\,x +\,1$ $\,15\,x +\,1$ $\,14\,x +\,7$ $\,56\,x +\,1$

$\,-4\,x \,-4 \,-6\,x =$ ?

$\,-14\,x$ $\,-2\,x \,-4$ $\,2\,x \,-4$ $\,-10\,x \,-4$ $\,-4\,x \,-10\,x$

$\,-3\,y \times \,3\,x \,-9\,xy =$ ?

$\,-18\,xy$ $\,-3\,y +\,3\,x \,-9\,xy$ $\,0\,xy$ $\,0\,xy$ $\,-9\,xy$

$\,2\,x +\,8\,\,x^2 +\,7 \,-3\,\,x^2 +\,1=$ ?

$\,-11\,\,x^2 +\,2\,x \,-6$ $\,5\,\,x^2 +\,2\,x +\,8$ $\,8\,\,x^2 +\,2\,x +\,5$ $\,11\,\,x^2 +\,2\,x +\,8$ $\,7\,\,x^2 +\,8$