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

$\,49\,x +\,6$ $\,-28\,x +\,9$ $\,0\,x +\,6$ $\,-49\,x \,-12$ $\,-49\,x +\,6$

$\,5\,x \,-2\,\,x^2 +\,4 +\,3\,\,x^2 +\,3=$ ?

$\,5\,\,x^2 +\,5\,x \,-1$ $\,\,x^2 +\,5\,x +\,7$ $\,6\,\,x^2 +\,7$ $\,\,x^2 +\,5\,x \,-1$ $\,7\,\,x^2 +\,5\,x +\,1$

$\,9 + ( - \,7\,x + \,9) - ( \,4 - \,3\,x) =$ ?

$\,x +\,9$ $\,-4\,x +\,22$ $\,-4\,x \,-4$ $\,-10\,x +\,14$ $\,-4\,x +\,14$

$\,6\,x +\,8\,y \,-5\,y \,-\,x=$ ?

$\,5\,x +\,3\,y$ $\,7\,x +\,3\,y$ $\,5\,x \,-13\,y$ $\,14\,xy \,-6\,yx$ $\,7\,x +\,13\,y$

$\,-3\,x \,-8 \,-6\,x \,-3 \,-6\,x=$ ?

$\,-3\,x +\,5$ $\,-20\,x$ $\,-3\,x \,-11$ $\,-26\,x$ $\,-15\,x +\,5$ $\,-15\,x \,-11$

$ \,7\,x + \,6\,y - ( \,8\,x - \,2\,y)=$ ?

$\,15\,x +\,4\,y$ $\,15\,x +\,8\,y$ $\,-\,x +\,8\,y$ $\,-\,x +\,4\,y$ $\,-\,x \,-4\,y$

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

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

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

$\,-3\,\,x^2 +\,x$ $\,-3\,\,x^2 +\,6\,x$ $\,-3\,\,x^2 \,-6\,x$ $\,-9\,\,x^2$ $\,3\,\,x^2 \,-6\,x$

$\,3\,x - ( - \,4\,\,x^2 - \,9 ) + \,9\,x=$ ?

$\,-4\,\,x^2 +\,12\,x +\,9$ $\,-4\,\,x^2 +\,12\,x \,-9$ $\,4\,\,x^2 +\,12\,x +\,9$ $\,4\,\,x^2 +\,12\,x \,-9$ $\,4\,\,x^2 \,-6\,x +\,9$

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

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