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QUIZ
Réduire une expression littérale (QCM)
Question 1 :
$\,3 \,-3\times(\,-4\,x\,) \,-5 =$ ?
$\,-12\,x \,-2$ $\,12\,x \,-2$ $\,12\,x +\,8$ $\,-7\,x \,-2$
Question 2 :
$\,-2\,x +\,1 \,-\,x +\,8 +\,7\,x=$ ?
$\,4\,x +\,7$ $\,-3\,x$ $\,-10\,x +\,9$ $\,4\,x +\,9$ $\,6\,x +\,7$ $\,13\,x$
Question 3 :
$\,5\,x + (\,8 - \,4\,x + \,7\,y) =$ ?
$\,9\,x \,-7\,y \,-8$ $\,x +\,7\,y +\,8$ $\,x \,-7\,y +\,8$ $\,-\,x +\,7\,y \,-8$ $\,9\,x +\,7\,y +\,8$
Question 4 :
$\,-3\,x \,-\,\,x^2 +\,4 +\,2\,\,x^2 \,-8=$ ?
$\,-2\,\,x^2 \,-4$ $\,-4\,\,x^2 \,-3\,x +\,1$ $\,\,x^2 \,-3\,x \,-4$ $\,\,x^2 \,-3\,x \,-12$ $\,3\,\,x^2 \,-3\,x \,-12$
Question 5 :
$\,-\,x \,-9\,y \,-\,y \,-5\,x=$ ?
$\,4\,x \,-8\,y$ $\,-6\,x \,-10\,y$ $\,-10\,xy \,-6\,yx$ $\,4\,x \,-10\,y$ $\,-6\,x +\,8\,y$
Question 6 :
$ \,4\,x + \,4\,y - ( \,3\,x - \,7\,y)=$ ?
$\,x +\,3\,y$ $\,7\,x \,-3\,y$ $\,x +\,11\,y$ $\,7\,x +\,11\,y$ $\,x \,-3\,y$
Question 7 :
$\,7 + ( - \,2\,x + \,6) - ( \,7 - \,x) =$ ?
$\,-3\,x +\,6$ $\,-\,x \,-6$ $\,-2\,x +\,7$ $\,-\,x +\,20$ $\,-\,x +\,6$
Question 8 :
$\,-8\times \,x \times \,9 + \,x \times (\,-5\,x\,) =$ ?
$\,-5\,\,x^2 +\,72\,x$ $\,-77\,\,x^2$ $\,5\,\,x^2 \,-72\,x$ $\,-5\,\,x^2 \,-72\,x$ $\,-5\,\,x^2 +\,x$
Question 9 :
$\,8\,x - ( - \,6\,\,x^2 - \,2 ) + \,3\,x=$ ?
$\,6\,\,x^2 +\,11\,x +\,2$ $\,6\,\,x^2 +\,11\,x \,-2$ $\,6\,\,x^2 +\,5\,x +\,2$ $\,-6\,\,x^2 +\,11\,x \,-2$ $\,-6\,\,x^2 +\,11\,x +\,2$
Question 10 :
$ \,2\,\,x^2 - ( \,5 + \,6\,\,x^2 + \,3\,x)=$ ?
$\,-4\,\,x^2 +\,3\,x \,-5$ $\,-4\,\,x^2 +\,3\,x +\,5$ $\,8\,\,x^2 +\,3\,x +\,5$ $\,8\,\,x^2 \,-3\,x \,-5$ $\,-4\,\,x^2 \,-3\,x \,-5$