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QUIZ
Réduire une expression sans parenthèses (QCM)
Question 1 :
$\,-5 +\,5\,x \,-6\,y \,-6\,x +\,3=$ ?
$\,-\,x +\,6\,y \,-2$ $\,-6\,x \,-6\,y +\,3$ $\,-7\,xy \,-2$ $\,-\,x \,-6\,y \,-8$ $\,-\,x \,-6\,y \,-2$
Question 2 :
$\,-8 +\,5\times(\,-4\,x\,) \,-3 =$ ?
$\,12\,x \,-3$ $\,-20\,x \,-5$ $\,-20\,x \,-11$ $\,20\,x \,-11$ $\,x \,-11$
Question 3 :
$\,-3\,x \,-9 +\,9\,x +\,8 +\,3\,x=$ ?
$\,-8\,x$ $\,-9\,x +\,17$ $\,9\,x \,-1$ $\,9\,x +\,17$ $\,3\,x \,-1$ $\,8\,x$
Question 4 :
$\,-6\,x +\,2\,y \,-9\,y +\,5\,x=$ ?
$\,-11\,x \,-7\,y$ $\,-11\,x +\,11\,y$ $\,-4\,xy \,-4\,yx$ $\,-\,x \,-11\,y$ $\,-\,x \,-7\,y$
Question 5 :
$\,5\,y \times (\,-9\,x\,) \,-9\,xy =$ ?
$\,-36\,xy$ $\,36\,xy$ $\,-54\,xy$ $\,-13\,xy$ $\,5\,y \,-9\,x \,-9\,xy$
Question 6 :
$\,-4\,x \,-4 \,-3\,x =$ ?
$\,-11\,x$ $\,-7\,x \,-4$ $\,x \,-4$ $\,-\,x \,-4$ $\,-4\,x \,-7\,x$
Question 7 :
$\,-1\times \,x \times (\,-6\,) + \,x \times (\,-9\,x\,) =$ ?
$\,-9\,\,x^2 \,-6\,x$ $\,-9\,\,x^2 \,-7\,x$ $\,9\,\,x^2 +\,6\,x$ $\,-3\,\,x^2$ $\,-9\,\,x^2 +\,6\,x$
Question 8 :
$\,-6\,x +\,6\,\,x^2 +\,7 \,-5\,\,x^2 \,-4=$ ?
$\,-5\,\,x^2 +\,3$ $\,\,x^2 \,-6\,x \,-11$ $\,-11\,\,x^2 \,-6\,x \,-11$ $\,\,x^2 \,-6\,x +\,3$ $\,3\,\,x^2 \,-6\,x +\,1$