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QUIZ
Synthèse : Réduire une expression littérale
Question 1 :
$\,8 \,-9\times\,3\,x \,-6 =$ ?
$\,27\,x +\,2$ $\,-27\,x +\,2$ $\,-6\,x +\,2$ $\,-3\,x \,-6$ $\,-27\,x +\,14$
Question 2 :
$\,-6\,x \,-6 +\,7\,x +\,3 +\,6\,x=$ ?
$\,-5\,x \,-3$ $\,4\,x$ $\,7\,x \,-3$ $\,-7\,x +\,9$ $\,7\,x +\,9$ $\,-2\,x$
Question 3 :
$\,6\,x - ( - \,8\,\,x^2 - \,4 ) + \,3\,x=$ ?
$\,8\,\,x^2 +\,9\,x +\,4$ $\,-8\,\,x^2 +\,9\,x +\,4$ $\,-8\,\,x^2 +\,9\,x \,-4$ $\,8\,\,x^2 +\,9\,x \,-4$ $\,8\,\,x^2 +\,3\,x +\,4$
Question 4 :
$\,-2\,x \,-9\,\,x^2 \,-7 +\,3\,\,x^2 \,-9=$ ?
$\,-12\,\,x^2 \,-2\,x \,-16$ $\,-16\,\,x^2 \,-2\,x \,-6$ $\,-8\,\,x^2 \,-16$ $\,-6\,\,x^2 \,-2\,x \,-16$ $\,12\,\,x^2 \,-2\,x \,-2$
Question 5 :
$\,8\,x +\,2\,y +\,6\,y +\,7\,x=$ ?
$\,x +\,8\,y$ $\,10\,xy +\,13\,yx$ $\,x \,-4\,y$ $\,15\,x +\,8\,y$ $\,15\,x +\,4\,y$
Question 6 :
$ \,4\,x + \,7\,y - ( \,6\,x - \,6\,y)=$ ?
$\,-2\,x \,-\,y$ $\,-2\,x +\,13\,y$ $\,-2\,x +\,y$ $\,10\,x +\,y$ $\,10\,x +\,13\,y$
Question 7 :
$ \,6\,\,x^2 - ( \,3 + \,9\,\,x^2 + \,x)=$ ?
$\,-3\,\,x^2 +\,x \,-3$ $\,-3\,\,x^2 \,-\,x \,-3$ $\,15\,\,x^2 +\,x +\,3$ $\,-3\,\,x^2 +\,x +\,3$ $\,15\,\,x^2 \,-\,x \,-3$
Question 8 :
$\,-8\times \,x \times (\,-4\,) + \,x \times (\,-3\,x\,) =$ ?
$\,3\,\,x^2 +\,32\,x$ $\,-3\,\,x^2 \,-32\,x$ $\,-3\,\,x^2 +\,32\,x$ $\,-3\,\,x^2 \,-12\,x$ $\,29\,\,x^2$
Question 9 :
$\,4\,x + (\,9 - \,9\,x + \,8\,y) =$ ?
$\,13\,x \,-8\,y \,-9$ $\,-5\,x \,-8\,y +\,9$ $\,5\,x +\,8\,y \,-9$ $\,13\,x +\,8\,y +\,9$ $\,-5\,x +\,8\,y +\,9$
Question 10 :
$\,3 + ( - \,9\,x + \,8) - ( \,4 - \,4\,x) =$ ?
$\,-5\,x +\,15$ $\,-\,x +\,3$ $\,-5\,x +\,7$ $\,-5\,x \,-9$ $\,-13\,x +\,7$