$\,-2\,x \,-8\,y \,-7\,y +\,9\,x=$ ?

$\,7\,x \,-15\,y$ $\,-11\,x \,-\,y$ $\,7\,x +\,y$ $\,-10\,xy +\,2\,yx$ $\,-11\,x \,-15\,y$

$\,-1\times \,x \times (\,-7\,) + \,x \times (\,-7\,x\,) =$ ?

$\,7\,\,x^2 +\,7\,x$ $\,-7\,\,x^2 \,-8\,x$ $\,-7\,\,x^2 \,-7\,x$ $\,-7\,\,x^2 +\,7\,x$

$\,7\,x - ( - \,3\,\,x^2 - \,9 ) + \,9\,x=$ ?

$\,3\,\,x^2 +\,16\,x +\,9$ $\,-3\,\,x^2 +\,16\,x +\,9$ $\,3\,\,x^2 +\,16\,x \,-9$ $\,3\,\,x^2 \,-2\,x +\,9$ $\,-3\,\,x^2 +\,16\,x \,-9$

$\,4 \,-4\times(\,-\,x\,) \,-8 =$ ?

$\,4\,x \,-4$ $\,-5\,x \,-4$ $\,4\,x +\,12$ $\,-4\,x \,-4$

$\,8\,x +\,8 \,-9\,x +\,5 +\,2\,x=$ ?

$\,x \,-3$ $\,19\,x \,-3$ $\,4\,x$ $\,14\,x$ $\,-3\,x +\,13$ $\,x +\,13$

$ \,2\,x + \,8\,y - ( \,3\,x - \,2\,y)=$ ?

$\,-\,x \,-6\,y$ $\,-\,x +\,10\,y$ $\,5\,x +\,6\,y$ $\,5\,x +\,10\,y$ $\,-\,x +\,6\,y$

$ \,\,x^2 - ( \,8 + \,4\,\,x^2 + \,5\,x)=$ ?

$\,-3\,\,x^2 +\,5\,x \,-8$ $\,-3\,\,x^2 \,-5\,x \,-8$ $\,5\,\,x^2 +\,5\,x +\,8$ $\,5\,\,x^2 \,-5\,x \,-8$ $\,-3\,\,x^2 +\,5\,x +\,8$

$\,9\,x +\,5\,\,x^2 +\,2 +\,7\,\,x^2 \,-5=$ ?

$\,-3\,\,x^2 +\,9\,x +\,12$ $\,21\,\,x^2 \,-3$ $\,12\,\,x^2 +\,9\,x \,-7$ $\,2\,\,x^2 +\,9\,x \,-7$ $\,12\,\,x^2 +\,9\,x \,-3$

$\,3\,x + (\,5 - \,4\,x + \,7\,y) =$ ?

$\,x +\,7\,y \,-5$ $\,7\,x \,-7\,y \,-5$ $\,-\,x +\,7\,y +\,5$ $\,-\,x \,-7\,y +\,5$ $\,7\,x +\,7\,y +\,5$

$\,8 + ( - \,5\,x + \,6) - ( \,6 - \,6\,x) =$ ?

$\,x \,-4$ $\,-11\,x +\,8$ $\,x +\,8$ $\,x +\,20$