$\,9 + ( - \,4\,x + \,2) - ( \,8 - \,6\,x) =$ ?

$\,2\,x +\,3$ $\,2\,x +\,19$ $\,-4\,x +\,9$ $\,2\,x \,-1$ $\,-10\,x +\,3$

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

$\,x +\,2\,y$ $\,7\,x +\,2\,y$ $\,7\,x +\,6\,y$ $\,x \,-2\,y$ $\,x +\,6\,y$

$\,5\,\,x^2 - ( \,9 + \,3\,\,x^2 + \,7\,x)=$ ?

$\,2\,\,x^2 +\,7\,x +\,9$ $\,2\,\,x^2 \,-7\,x \,-9$ $\,2\,\,x^2 +\,7\,x \,-9$ $\,8\,\,x^2 \,-7\,x \,-9$ $\,8\,\,x^2 +\,7\,x +\,9$

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

$\,7\,x +\,3\,y +\,9$ $\,11\,x \,-3\,y \,-9$ $\,7\,x \,-3\,y +\,9$ $\,-7\,x +\,3\,y \,-9$ $\,11\,x +\,3\,y +\,9$

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

$\,-3\,\,x^2 +\,2\,x$ $\,-\,\,x^2 +\,2\,x$ $\,3\,\,x^2 +\,2\,x$ $\,-\,\,x^2 +\,14\,x$ $\,-3\,\,x^2 +\,14\,x$

$\,9\,x - ( - \,7\,\,x^2 - \,5 ) + \,8\,x=$ ?

$\,7\,\,x^2 +\,17\,x \,-5$ $\,-7\,\,x^2 +\,17\,x \,-5$ $\,-7\,\,x^2 +\,17\,x +\,5$ $\,7\,\,x^2 +\,17\,x +\,5$ $\,7\,\,x^2 +\,x +\,5$