$\,8 + ( - \,6\,x + \,9) - ( \,5 - \,3\,x) =$ ?

$\,-3\,x \,-6$ $\,-3\,x +\,12$ $\,-3\,x +\,22$ $\,-9\,x +\,12$ $\,x +\,8$

$ \,2\,\,x^2 - ( \,8 + \,7\,\,x^2 + \,5\,x)=$ ?

$\,9\,\,x^2 \,-5\,x \,-8$ $\,-5\,\,x^2 +\,5\,x +\,8$ $\,-5\,\,x^2 \,-5\,x \,-8$ $\,-5\,\,x^2 +\,5\,x \,-8$ $\,9\,\,x^2 +\,5\,x +\,8$

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

$\,-\,x +\,5\,y$ $\,-\,x \,-5\,y$ $\,17\,x +\,5\,y$ $\,17\,x +\,9\,y$ $\,-\,x +\,9\,y$

$\,4\,x + (\,2 - \,5\,x + \,6\,y) =$ ?

$\,-\,x +\,6\,y +\,2$ $\,9\,x +\,6\,y +\,2$ $\,-\,x \,-6\,y +\,2$ $\,9\,x \,-6\,y \,-2$ $\,x +\,6\,y \,-2$

$\,6\,x - ( - \,2\,\,x^2 - \,5 ) + \,7\,x=$ ?

$\,-2\,\,x^2 +\,13\,x \,-5$ $\,2\,\,x^2 \,-\,x +\,5$ $\,2\,\,x^2 +\,13\,x +\,5$ $\,-2\,\,x^2 +\,13\,x +\,5$ $\,2\,\,x^2 +\,13\,x \,-5$

$ \,x - \,\,x^2 - ( - \,6\,\,x^2 + \,4\,x )=$ ?

$\,-7\,\,x^2 \,-3\,x$ $\,7\,\,x^2 \,-3\,x$ $\,5\,\,x^2 \,-3\,x$ $\,-7\,\,x^2 +\,5\,x$ $\,5\,\,x^2 +\,5\,x$