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QUIZ
Réduire une expression littérale sans parenthèses
Question 1 :
$\,-8 +\,6\times(\,-4\,x\,) +\,3 =$ ?
$\,-24\,x \,-11$ $\,8\,x +\,3$ $\,2\,x \,-5$ $\,-24\,x \,-5$ $\,24\,x \,-5$
Question 2 :
$\,-7\,y \times \,x +\,3\,xy =$ ?
$\,-10\,xy$ $\,-7\,y +\,x +\,3\,xy$ $\,-3\,xy$ $\,-4\,xy$ $\,10\,xy$
Question 3 :
$\,-7\times \,x \times (\,-3\,) + \,x \times (\,-5\,x\,) =$ ?
$\,-5\,\,x^2 \,-10\,x$ $\,16\,\,x^2$ $\,-5\,\,x^2 \,-21\,x$ $\,5\,\,x^2 +\,21\,x$ $\,-5\,\,x^2 +\,21\,x$
Question 4 :
$\,6 \,-7\,x +\,7\,y \,-8\,x \,-9=$ ?
$\,-8\,xy \,-3$ $\,-9\,x +\,7\,y \,-9$ $\,-15\,x +\,7\,y +\,15$ $\,-15\,x +\,7\,y \,-3$ $\,-15\,x \,-7\,y \,-3$
Question 5 :
$\,-9\,x +\,7 \,-6\,x \,-6 \,-8\,x=$ ?
$\,-7\,x +\,1$ $\,-23\,x \,-13$ $\,-22\,x$ $\,-23\,x +\,1$ $\,-11\,x \,-13$ $\,-10\,x$
Question 6 :
$\,4\,x +\,5 +\,3\,x =$ ?
$\,7\,x +\,5$ $\,12\,x$ $\,4\,x +\,8\,x$ $\,-\,x +\,5$ $\,x +\,5$
Question 7 :
$\,-3\,x \,-9\,y +\,4\,y \,-9\,x=$ ?
$\,-12\,x \,-5\,y$ $\,-12\,x +\,13\,y$ $\,6\,x \,-5\,y$ $\,6\,x \,-13\,y$ $\,-12\,xy \,-5\,yx$
Question 8 :
$\,-3\,x \,-9\,\,x^2 +\,7 \,-6\,\,x^2 +\,5=$ ?
$\,12\,\,x^2 \,-3\,x \,-15$ $\,3\,\,x^2 \,-3\,x \,-2$ $\,-15\,\,x^2 \,-3\,x \,-2$ $\,-18\,\,x^2 +\,12$ $\,-15\,\,x^2 \,-3\,x +\,12$