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QUIZ
Synthèse : Réduire une expression littérale
Question 1 :
$\,4 \,-4\times(\,-8\,x\,) \,-5 =$ ?
$\,-32\,x \,-1$ $\,-12\,x \,-1$ $\,32\,x \,-1$ $\,32\,x +\,9$
Question 2 :
$\,-5\,x \,-3 +\,8\,x +\,9 \,-6\,x=$ ?
$\,-19\,x +\,12$ $\,-15\,x$ $\,3\,x$ $\,-3\,x +\,12$ $\,-3\,x +\,6$ $\,9\,x +\,6$
Question 3 :
$ \,6\,\,x^2 - ( \,7 + \,9\,\,x^2 + \,2\,x)=$ ?
$\,15\,\,x^2 +\,2\,x +\,7$ $\,-3\,\,x^2 +\,2\,x \,-7$ $\,-3\,\,x^2 \,-2\,x \,-7$ $\,-3\,\,x^2 +\,2\,x +\,7$ $\,15\,\,x^2 \,-2\,x \,-7$
Question 4 :
$\,-8\,x +\,\,x^2 +\,5 \,-2\,\,x^2 \,-6=$ ?
$\,-\,\,x^2 \,-8\,x \,-11$ $\,-\,\,x^2 \,-8\,x \,-1$ $\,-9\,\,x^2 \,-1$ $\,-3\,\,x^2 \,-8\,x \,-11$
Question 5 :
$\,-9\times \,x \times (\,-9\,) + \,x \times (\,-4\,x\,) =$ ?
$\,-4\,\,x^2 \,-81\,x$ $\,-4\,\,x^2 \,-18\,x$ $\,-4\,\,x^2 +\,81\,x$ $\,4\,\,x^2 +\,81\,x$ $\,77\,\,x^2$
Question 6 :
$\,1 + ( - \,x + \,4) - ( \,2 - \,2\,x) =$ ?
$\,x +\,3$ $\,x \,-5$ $\,3\,x +\,1$ $\,-3\,x +\,3$ $\,x +\,7$
Question 7 :
$ \,8\,x + \,4\,y - ( \,7\,x - \,6\,y)=$ ?
$\,x +\,10\,y$ $\,15\,x +\,10\,y$ $\,x +\,2\,y$ $\,x \,-2\,y$ $\,15\,x \,-2\,y$
Question 8 :
$\,-4\,x +\,4\,y \,-9\,y \,-7\,x=$ ?
$\,3\,x +\,13\,y$ $\,0\,xy \,-16\,yx$ $\,-11\,x \,-5\,y$ $\,3\,x \,-5\,y$ $\,-11\,x \,-13\,y$
Question 9 :
$\,3\,x + (\,8 - \,2\,x + \,y) =$ ?
$\,5\,x +\,y +\,8$ $\,x \,-\,y +\,8$ $\,-\,x +\,y \,-8$ $\,5\,x \,-\,y \,-8$ $\,x +\,y +\,8$
Question 10 :
$\,3\,x - ( - \,8\,\,x^2 - \,5 ) + \,8\,x=$ ?
$\,-8\,\,x^2 +\,11\,x +\,5$ $\,8\,\,x^2 +\,11\,x +\,5$ $\,8\,\,x^2 \,-5\,x +\,5$ $\,-8\,\,x^2 +\,11\,x \,-5$ $\,8\,\,x^2 +\,11\,x \,-5$