$\,8 \,-9\times\,6\,x \,-7 =$ ?

$\,-54\,x +\,1$ $\,-54\,x +\,15$ $\,-6\,x \,-7$ $\,54\,x +\,1$ $\,-3\,x +\,1$

$\,-9\times \,x \times \,7 + \,x \times (\,-5\,x\,) =$ ?

$\,-5\,\,x^2 \,-63\,x$ $\,-5\,\,x^2 \,-2\,x$ $\,-68\,\,x^2$ $\,-5\,\,x^2 +\,63\,x$ $\,5\,\,x^2 \,-63\,x$

$\,4\,x +\,8 \,-9\,x =$ ?

$\,4\,x \,-\,x$ $\,13\,x +\,8$ $\,-13\,x +\,8$ $\,3\,x$ $\,-5\,x +\,8$

$\,-5\,x \,-2 +\,8\,x +\,1 +\,6\,x=$ ?

$\,8\,x$ $\,9\,x +\,3$ $\,-3\,x \,-1$ $\,-7\,x +\,3$ $\,6\,x$ $\,9\,x \,-1$

$\,-1 \,-\,x \,-3\,y \,-6\,x \,-5=$ ?

$\,-10\,xy \,-6$ $\,-7\,x \,-3\,y \,-6$ $\,-7\,x \,-3\,y +\,4$ $\,5\,x \,-3\,y \,-6$ $\,-8\,x \,-3\,y \,-5$

$\,9\,x \,-2\,y \,-8\,y +\,x=$ ?

$\,8\,x \,-10\,y$ $\,10\,x \,-6\,y$ $\,10\,x \,-10\,y$ $\,8\,x +\,6\,y$ $\,7\,xy \,-7\,yx$

$\,-3\,y \times (\,-6\,x\,) \,-8\,xy =$ ?

$\,10\,xy$ $\,-26\,xy$ $\,-3\,y \,-6\,x \,-8\,xy$ $\,-17\,xy$ $\,26\,xy$

$\,5\,x \,-8\,\,x^2 \,-7 +\,4\,\,x^2 \,-3=$ ?

$\,-4\,\,x^2 +\,5\,x \,-10$ $\,-12\,\,x^2 +\,5\,x \,-10$ $\,\,x^2 \,-10$ $\,12\,\,x^2 +\,5\,x +\,4$ $\,-10\,\,x^2 +\,5\,x \,-4$