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QUIZ
Développement : simple distributivité
Développer et réduire :
Question 1 :
$(\,-8+\,4\,x)\,\times\,\,6 = $ ?
$\,-2 +\,10\,\,x$ $\,48 +\,10\,\,x$ $\,-48 \,-24\,\,x$ $\,-48 +\,24\,\,x$ $\,-48 \,-4\,\,x$ $\,-48 +\,4\,x$
Question 2 :
$\,5\;(\,7\,-2\,y) = $ ?
$\,35 \,-10\,\,y$ $\,12 +\,3\,\,y$ $\,35 +\,3\,y$ $\,35 +\,10\,\,y$ $\,35 \,-2\,y$ $\,35 +\,2\,\,y$
Question 3 :
$\,2\,b\;(\,6\,b+\,1) = $ ?
$\,8\,\,b^2 +\,3\,\,b$ $\,12\,\,b^2 +\,1$ $\,12\,\,b^2 +\,3\,\,b$ $\,12\,\,b^2 \,-2$ $\,-12\,\,b^2 +\,2$ $\,12\,\,b^2 +\,2\,\,b$
Question 4 :
$(\,a+\,6\,b)\,\times\,\,6 = $ ?
$\,7\,\,a +\,12\,\,b$ $\,6\,\,a \,-6\,\,b$ $\,6\,\,a +\,12\,\,b$ $\,6\,\,a \,-36\,\,b$ $\,6\,\,a +\,6\,b$ $\,6\,\,a +\,36\,\,b$
Question 5 :
$\,6\,x\;(\,-7+\,7\,y) = $ ?
$\,-42\,\,x +\,42\,\,x\,y$ $\,-42\,\,x +\,7\,y$ $\,-42\,\,x \,-42\,y$ $\,-\,\,x +\,13\,\,x\,y$ $\,-42\,\,x +\,42\,y$ $\,42\,\,x +\,13\,\,x\,y$
Question 6 :
$(\,-1+\,6\,a)\,\times\,\,4\,a = $ ?
$\,-4 +\,24\,\,a^2$ $\,-4\,\,a +\,6\,a$ $\,3\,\,a +\,10\,\,a^2$ $\,-4\,\,a +\,24\,\,a^2$ $\,-4\,\,a \,-24\,a$ $\,4\,\,a +\,10\,\,a^2$
Question 7 :
$(\,-6\,y+\,x)\,\times\,\,2\,y = $ ?
$\,-12\,\,y^2 +\,x$ $\,-12\,\,y^2 \,-2\,x$ $\,-12\,\,y^2 +\,2\,\,x\,y$ $\,-12\,\,y^2 +\,3\,\,x\,y$ $\,-4\,\,y^2 +\,3\,\,x\,y$ $\,12\,y +\,2\,\,x\,y$
Question 8 :
$\,-3\;(\,y\,-3) = $ ?
$\,-3\,\,y \,-3$ $\,-2\,\,y \,-6$ $\,-3\,\,y +\,9$ $\,-3\,\,y \,-9$ $\,3\,\,y \,-6$ $\,-3\,\,y +\,3$
Question 9 :
$\,5\,y\;(\,-3\,y\,-3\,x) = $ ?
$\,15\,\,y^2 +\,2\,x$ $\,-15\,\,y^2 +\,15\,x$ $\,2\,\,y^2 +\,2\,\,x\,y$ $\,-15\,\,y^2 \,-3\,x$ $\,-15\,y \,-15\,\,x\,y$ $\,-15\,\,y^2 \,-15\,\,x\,y$
Question 10 :
$\,-2\,b\;(\,5+\,2\,a) = $ ?
$\,-10\,\,b +\,2\,a$ $\,3\,\,b $ $\,-10 $ $\,-10\,\,b +\,4\,a$ $\,10 \,-4\,\,a\,b$ $\,-10\,\,b \,-4\,\,a\,b$