$\,4\,x +\,1 +\,4\,x \,-4 +\,2\,x=$ ?

$\,10\,x \,-5$ $\,6\,x \,-3$ $\,15\,x$ $\,7\,x$ $\,2\,x \,-5$ $\,10\,x \,-3$

$\,4 \,-5\times(\,-7\,x\,) \,-7 =$ ?

$\,-35\,x \,-3$ $\,-12\,x \,-3$ $\,7\,x \,-7$ $\,35\,x +\,11$ $\,35\,x \,-3$

$ \,3\,x + \,8\,y - ( \,5\,x - \,7\,y)=$ ?

$\,-2\,x +\,15\,y$ $\,8\,x +\,15\,y$ $\,-2\,x \,-\,y$ $\,8\,x +\,y$ $\,-2\,x +\,y$

$\,5\,x +\,8\,\,x^2 +\,6 +\,5\,\,x^2 \,-8=$ ?

$\,-3\,\,x^2 +\,5\,x \,-14$ $\,13\,\,x^2 +\,5\,x \,-2$ $\,18\,\,x^2 \,-2$ $\,3\,\,x^2 +\,5\,x \,-2$ $\,-2\,\,x^2 +\,5\,x +\,13$

$\,2\times \,x \times \,9 + \,x \times \,7\,x =$ ?

$\,-7\,\,x^2 +\,18\,x$ $\,7\,\,x^2 \,-18\,x$ $\,7\,\,x^2 +\,18\,x$ $\,25\,\,x^2$ $\,7\,\,x^2 +\,11\,x$

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

$\,11\,x +\,5\,y +\,4$ $\,-3\,x +\,5\,y +\,4$ $\,11\,x \,-5\,y \,-4$ $\,-3\,x \,-5\,y +\,4$ $\,3\,x +\,5\,y \,-4$

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

$\,4\,\,x^2 +\,3\,x +\,7$ $\,14\,\,x^2 \,-3\,x \,-7$ $\,4\,\,x^2 \,-3\,x \,-7$ $\,14\,\,x^2 +\,3\,x +\,7$ $\,4\,\,x^2 +\,3\,x \,-7$

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

$\,-5\,x +\,11\,y$ $\,-5\,x +\,7\,y$ $\,-4\,xy +\,10\,yx$ $\,-7\,x \,-7\,y$ $\,-7\,x +\,11\,y$

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

$\,3\,x +\,2$ $\,3\,x +\,20$ $\,-9\,x +\,2$ $\,3\,x \,-10$

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

$\,5\,\,x^2 +\,12\,x \,-2$ $\,-5\,\,x^2 +\,12\,x \,-2$ $\,5\,\,x^2 \,-4\,x +\,2$ $\,5\,\,x^2 +\,12\,x +\,2$ $\,-5\,\,x^2 +\,12\,x +\,2$