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QUIZ
Réduire une expression sans parenthèses
Question 1 :
$\,-6\,x \,-3 \,-8\,x =$ ?
$\,-6\,x \,-11\,x$ $\,-14\,x \,-3$ $\,2\,x \,-3$ $\,-17\,x$ $\,-2\,x \,-3$
Question 2 :
$\,3 \,-8\times\,2\,x \,-8 =$ ?
$\,-6\,x \,-5$ $\,-16\,x +\,11$ $\,-10\,x \,-8$ $\,16\,x \,-5$ $\,-16\,x \,-5$
Question 3 :
$\,5\,x \,-6\,\,x^2 +\,8 +\,\,x^2 \,-7=$ ?
$\,-5\,\,x^2 +\,5\,x +\,1$ $\,-5\,\,x^2 +\,5\,x \,-15$ $\,\,x^2 +\,5\,x \,-5$ $\,7\,\,x^2 +\,5\,x \,-15$
Question 4 :
$\,-9\,x \,-9 +\,7\,x +\,4 +\,4\,x=$ ?
$\,-11\,x$ $\,-12\,x +\,13$ $\,2\,x \,-5$ $\,-3\,x$ $\,2\,x +\,13$ $\,-6\,x \,-5$
Question 5 :
$\,1\times \,x \times \,6 + \,x \times \,6\,x =$ ?
$\,-6\,\,x^2 +\,6\,x$ $\,6\,\,x^2 +\,6\,x$ $\,12\,\,x^2$ $\,6\,\,x^2 +\,7\,x$ $\,6\,\,x^2 \,-6\,x$
Question 6 :
$\,8 \,-4\,x \,-2\,y +\,x +\,4=$ ?
$\,5\,x \,-2\,y +\,4$ $\,-5\,xy +\,12$ $\,-5\,x \,-2\,y +\,12$ $\,-3\,x \,-2\,y +\,12$ $\,-3\,x \,-2\,y +\,4$
Question 7 :
$\,-9\,y \times (\,-8\,x\,) \,-8\,xy =$ ?
$\,80\,xy$ $\,64\,xy$ $\,-25\,xy$ $\,-80\,xy$ $\,-9\,y \,-8\,x \,-8\,xy$
Question 8 :
$\,9\,x +\,y +\,6\,y \,-\,x=$ ?
$\,8\,x +\,7\,y$ $\,10\,x \,-5\,y$ $\,8\,x +\,5\,y$ $\,10\,x +\,7\,y$ $\,10\,xy +\,5\,yx$