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QUIZ
Réduire une expression littérale
Question 1 :
$\,8\,x \,-9\,\,x^2 \,-2 +\,8\,\,x^2 \,-8=$ ?
$\,7\,\,x^2 \,-10$ $\,-10\,\,x^2 +\,8\,x \,-1$ $\,17\,\,x^2 +\,8\,x \,-6$ $\,-\,\,x^2 +\,8\,x \,-10$ $\,-17\,\,x^2 +\,8\,x \,-10$
Question 2 :
$\,-3 \,-9\times(\,-7\,x\,) +\,7 =$ ?
$\,63\,x +\,4$ $\,63\,x \,-10$ $\,84\,x +\,7$ $\,-63\,x +\,4$ $\,-16\,x +\,4$
Question 3 :
$ \,4\,\,x^2 - ( \,2 + \,\,x^2 + \,6\,x)=$ ?
$\,5\,\,x^2 \,-6\,x \,-2$ $\,3\,\,x^2 +\,6\,x \,-2$ $\,3\,\,x^2 \,-6\,x \,-2$ $\,5\,\,x^2 +\,6\,x +\,2$ $\,3\,\,x^2 +\,6\,x +\,2$
Question 4 :
$\,-3\times \,x \times (\,-6\,) + \,x \times \,4\,x =$ ?
$\,4\,\,x^2 \,-9\,x$ $\,-4\,\,x^2 +\,18\,x$ $\,22\,\,x^2$ $\,4\,\,x^2 \,-18\,x$ $\,4\,\,x^2 +\,18\,x$
Question 5 :
$\,-2\,x \,-6 +\,6\,x \,-3 +\,7\,x=$ ?
$\,11\,x \,-9$ $\,11\,x +\,3$ $\,8\,x$ $\,-3\,x \,-9$ $\,-\,x +\,3$ $\,2\,x$
Question 6 :
$\,x - ( - \,7\,\,x^2 - \,1 ) + \,4\,x=$ ?
$\,-7\,\,x^2 +\,5\,x \,-1$ $\,7\,\,x^2 \,-3\,x +\,1$ $\,-7\,\,x^2 +\,5\,x +\,1$ $\,7\,\,x^2 +\,5\,x \,-1$ $\,7\,\,x^2 +\,5\,x +\,1$
Question 7 :
$\,5\,x + (\,1 - \,4\,x + \,4\,y) =$ ?
$\,-\,x +\,4\,y \,-1$ $\,9\,x +\,4\,y +\,1$ $\,9\,x \,-4\,y \,-1$ $\,x \,-4\,y +\,1$ $\,x +\,4\,y +\,1$
Question 8 :
$\,-6\,x \,-9\,y \,-4\,y +\,5\,x=$ ?
$\,-15\,xy +\,yx$ $\,-\,x +\,5\,y$ $\,-\,x \,-13\,y$ $\,-11\,x \,-5\,y$ $\,-11\,x \,-13\,y$
Question 9 :
$\,9 + ( - \,8\,x + \,3) - ( \,5 - \,3\,x) =$ ?
$\,-11\,x +\,7$ $\,-5\,x +\,7$ $\,-5\,x +\,1$ $\,-7\,x +\,9$ $\,-5\,x +\,17$
Question 10 :
$ \,9\,x + \,5\,y - ( \,5\,x - \,4\,y)=$ ?
$\,4\,x \,-\,y$ $\,4\,x +\,y$ $\,4\,x +\,9\,y$ $\,14\,x +\,9\,y$ $\,14\,x +\,y$