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

$\,6\,\,x^2 \,-8\,x$ $\,-8\,\,x^2 +\,10\,x$ $\,-8\,\,x^2 \,-8\,x$ $\,8\,\,x^2 \,-8\,x$ $\,6\,\,x^2 +\,10\,x$

$ \,9\,x + \,y - ( \,7\,x - \,4\,y)=$ ?

$\,2\,x +\,3\,y$ $\,2\,x \,-3\,y$ $\,2\,x +\,5\,y$ $\,16\,x \,-3\,y$ $\,16\,x +\,5\,y$

$ \,2\,\,x^2 - ( \,4 + \,8\,\,x^2 + \,3\,x)=$ ?

$\,-6\,\,x^2 +\,3\,x +\,4$ $\,10\,\,x^2 \,-3\,x \,-4$ $\,10\,\,x^2 +\,3\,x +\,4$ $\,-6\,\,x^2 +\,3\,x \,-4$ $\,-6\,\,x^2 \,-3\,x \,-4$

$\,9\,x + (\,3 - \,3\,x + \,6\,y) =$ ?

$\,12\,x +\,6\,y +\,3$ $\,12\,x \,-6\,y \,-3$ $\,-6\,x +\,6\,y \,-3$ $\,6\,x \,-6\,y +\,3$ $\,6\,x +\,6\,y +\,3$

$\,4 + ( - \,8\,x + \,1) - ( \,6 - \,9\,x) =$ ?

$\,x +\,11$ $\,x \,-1$ $\,x \,-3$ $\,-17\,x \,-1$ $\,-4\,x +\,4$

$\,8\,x - ( - \,6\,\,x^2 - \,2 ) + \,6\,x=$ ?

$\,-6\,\,x^2 +\,14\,x \,-2$ $\,6\,\,x^2 +\,14\,x \,-2$ $\,6\,\,x^2 +\,14\,x +\,2$ $\,6\,\,x^2 +\,2\,x +\,2$ $\,-6\,\,x^2 +\,14\,x +\,2$