$\,4 \,-9\times\,5\,x +\,9 =$ ?

$\,-25\,x +\,9$ $\,-45\,x +\,13$ $\,-4\,x +\,13$ $\,-45\,x \,-5$ $\,45\,x +\,13$

$\,-7 \,-2\,x +\,7\,y +\,4\,x +\,3=$ ?

$\,-6\,x +\,7\,y \,-4$ $\,2\,x +\,7\,y \,-10$ $\,-5\,x +\,7\,y +\,3$ $\,2\,x +\,7\,y \,-4$ $\,9\,xy \,-4$

$\,-4\,y \times (\,-7\,x\,) \,-7\,xy =$ ?

$\,-18\,xy$ $\,21\,xy$ $\,-4\,y \,-7\,x \,-7\,xy$ $\,35\,xy$ $\,-35\,xy$

$\,6\times \,x \times \,4 + \,x \times \,8\,x =$ ?

$\,8\,\,x^2 \,-24\,x$ $\,8\,\,x^2 +\,10\,x$ $\,8\,\,x^2 +\,24\,x$ $\,32\,\,x^2$ $\,-8\,\,x^2 +\,24\,x$

$\,-2\,x \,-\,y +\,5\,y +\,9\,x=$ ?

$\,-11\,x +\,4\,y$ $\,-11\,x \,-6\,y$ $\,-3\,xy +\,14\,yx$ $\,7\,x +\,4\,y$ $\,7\,x +\,6\,y$

$\,x +\,7\,\,x^2 \,-6 +\,2\,\,x^2 +\,7=$ ?

$\,9\,\,x^2 +\,x +\,1$ $\,9\,\,x^2 +\,x +\,13$ $\,-5\,\,x^2 +\,x +\,13$ $\,10\,\,x^2 +\,1$ $\,\,x^2 +\,x +\,9$

$\,3\,x \,-1 +\,2\,x +\,2 \,-2\,x=$ ?

$\,7\,x +\,1$ $\,3\,x +\,1$ $\,3\,x +\,3$ $\,-\,x +\,3$ $\,4\,x$

$\,-9\,x \,-7 +\,8\,x =$ ?

$\,-17\,x \,-7$ $\,-9\,x +\,x$ $\,17\,x \,-7$ $\,-8\,x$ $\,-\,x \,-7$