$\,-2\,y \times (\,-4\,x\,) \,-5\,xy =$ ?

$\,-2\,y \,-4\,x \,-5\,xy$ $\,13\,xy$ $\,3\,xy$ $\,-13\,xy$ $\,-11\,xy$

$\,5\,x \,-8 +\,5\,x \,-3 \,-7\,x=$ ?

$\,-2\,x$ $\,17\,x \,-11$ $\,-8\,x$ $\,3\,x \,-11$ $\,3\,x +\,5$ $\,-7\,x +\,5$

$\,-4\,x +\,9\,\,x^2 +\,9 \,-5\,\,x^2 +\,5=$ ?

$\,4\,\,x^2 \,-4\,x \,-4$ $\,-14\,\,x^2 \,-4\,x \,-4$ $\,14\,\,x^2 \,-4\,x +\,4$ $\,4\,\,x^2 \,-4\,x +\,14$

$\,-9\times \,x \times (\,-4\,) + \,x \times (\,-6\,x\,) =$ ?

$\,-6\,\,x^2 \,-13\,x$ $\,-6\,\,x^2 +\,36\,x$ $\,-6\,\,x^2 \,-36\,x$ $\,30\,\,x^2$ $\,6\,\,x^2 +\,36\,x$

$\,7 \,-7\,x +\,6\,y \,-5\,x +\,4=$ ?

$\,-2\,x +\,6\,y +\,11$ $\,-12\,x +\,6\,y +\,11$ $\,-6\,xy +\,11$ $\,-12\,x +\,6\,y +\,3$ $\,-5\,x +\,6\,y +\,4$

$\,4\,x \,-2 \,-2\,x =$ ?

$\,4\,x \,-4\,x$ $\,0\,x$ $\,-6\,x \,-2$ $\,2\,x \,-2$ $\,6\,x \,-2$

$\,-6\,x \,-7\,y +\,4\,y +\,8\,x=$ ?

$\,-13\,xy +\,12\,yx$ $\,-14\,x \,-11\,y$ $\,2\,x +\,11\,y$ $\,2\,x \,-3\,y$ $\,-14\,x \,-3\,y$

$\,3 \,-3\times(\,-4\,x\,) \,-6 =$ ?

$\,12\,x +\,9$ $\,-12\,x \,-3$ $\,-7\,x \,-3$ $\,12\,x \,-3$