$\,5\,y \times \,7\,x +\,6\,xy =$ ?

$\,-29\,xy$ $\,18\,xy$ $\,29\,xy$ $\,41\,xy$ $\,5\,y +\,7\,x +\,6\,xy$

$\,6\,x +\,8 +\,5\,x +\,7 \,-2\,x=$ ?

$\,10\,x$ $\,-\,x \,-1$ $\,24\,x$ $\,9\,x \,-1$ $\,9\,x +\,15$ $\,13\,x +\,15$

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

$\,-8\,\,x^2 \,-16\,x$ $\,-8\,\,x^2 \,-63\,x$ $\,8\,\,x^2 +\,63\,x$ $\,55\,\,x^2$ $\,-8\,\,x^2 +\,63\,x$

$\,-8\,x +\,\,x^2 +\,4 +\,9\,\,x^2 \,-5=$ ?

$\,2\,\,x^2 \,-1$ $\,10\,\,x^2 \,-8\,x \,-1$ $\,8\,\,x^2 \,-8\,x \,-9$ $\,-8\,\,x^2 \,-8\,x \,-1$ $\,-\,\,x^2 \,-8\,x +\,10$

$\,-2 +\,7\times\,7\,x \,-1 =$ ?

$\,35\,x \,-1$ $\,49\,x \,-3$ $\,49\,x \,-1$ $\,14\,x \,-3$ $\,-49\,x \,-3$

$\,x \,-1 +\,3\,x =$ ?

$\,2\,x \,-1$ $\,4\,x \,-1$ $\,-2\,x \,-1$ $\,3\,x$ $\,x +\,2\,x$

$\,3 \,-4\,x +\,9\,y +\,2\,x +\,6=$ ?

$\,x +\,9\,y +\,6$ $\,-2\,x +\,9\,y +\,9$ $\,7\,xy +\,9$ $\,-2\,x +\,9\,y \,-3$ $\,-2\,x \,-9\,y +\,9$

$\,5\,x \,-7\,y +\,9\,y +\,2\,x=$ ?

$\,3\,x \,-16\,y$ $\,3\,x +\,2\,y$ $\,7\,x +\,16\,y$ $\,7\,x +\,2\,y$ $\,-2\,xy +\,11\,yx$