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QUIZ
Développement : simple distributivité
Développer et réduire :
Question 1 :
$(\,y+\,7)\,\times\,\,5 = $ ?
$\,6\,\,y +\,12$ $\,5\,\,y +\,35$ $\,5\,\,y +\,7$ $\,5\,\,y \,-7$ $\,5\,\,y \,-35$ $\,5\,\,y +\,12$
Question 2 :
$\,2\;(\,-3\,a\,-6) = $ ?
$\,-6\,\,a \,-6$ $\,6\,\,a \,-4$ $\,-\,\,a \,-4$ $\,-6\,\,a \,-12$ $\,-6\,\,a +\,12$ $\,-6\,\,a +\,6$
Question 3 :
$(\,-5\,b\,-6\,a)\,\times\,\,4\,b = $ ?
$\,-20\,\,b^2 \,-24\,\,a\,b$ $\,20\,\,b^2 \,-2\,a$ $\,-20\,\,b^2 \,-6\,a$ $\,-20\,\,b^2 \,-24\,a$ $\,-\,\,b^2 \,-2\,\,a\,b$ $\,-20\,\,b^2 +\,24\,a$
Question 4 :
$\,-3\;(\,9\,x\,-5) = $ ?
$\,6\,\,x \,-8$ $\,-27\,\,x \,-5$ $\,-27\,\,x +\,5$ $\,27\,\,x \,-8$ $\,-27\,\,x \,-15$ $\,-27\,\,x +\,15$
Question 5 :
$(\,2\,b+\,8\,a)\,\times\,\,5\,b = $ ?
$\,-10\,\,b^2 +\,40\,a$ $\,10\,\,b^2 +\,8\,a$ $\,10\,\,b^2 \,-40\,a$ $\,10\,\,b^2 +\,40\,\,a\,b$ $\,7\,\,b^2 +\,13\,\,a\,b$ $\,10\,\,b^2 +\,13\,\,a\,b$
Question 6 :
$\,5\,y\;(\,-9\,-2\,y) = $ ?
$\,-4\,\,y +\,3\,\,y^2$ $\,-45\,\,y \,-2\,y$ $\,45\,\,y \,-10\,y$ $\,-45\,\,y +\,10\,y$ $\,-45\,\,y \,-10\,\,y^2$ $\,-45\,\,y +\,3\,y$
Question 7 :
$\,-3\,t\;(\,-5\,-5\,x) = $ ?
$\,-8\,\,t \,-8\,\,t\,x$ $\,15\,\,t \,-8\,x$ $\,15\,\,t \,-15\,x$ $\,-15 +\,15\,\,t\,x$ $\,15\,\,t \,-5\,x$ $\,15\,\,t +\,15\,\,t\,x$
Question 8 :
$(\,-5\,b+\,3\,a)\,\times\,\,2 = $ ?
$\,-10\,\,b +\,3\,a$ $\,-10\,\,b +\,6\,\,a$ $\,-10\,\,b \,-6\,\,a$ $\,-3\,\,b +\,5\,\,a$ $\,10\,\,b +\,5\,\,a$ $\,-10\,\,b \,-3\,\,a$
Question 9 :
$\,2\,t\;(\,8\,x+\,9) = $ ?
$\,-16\,\,t\,x +\,18$ $\,10\,\,t\,x +\,11\,\,t$ $\,16\,\,t\,x +\,9$ $\,16\,\,t\,x +\,11\,\,t$ $\,16\,\,t\,x \,-18$ $\,16\,\,t\,x +\,18\,\,t$
Question 10 :
$\,2\,x\;(\,7\,x+\,5) = $ ?
$\,14\,\,x^2 \,-10$ $\,14\,\,x^2 +\,5$ $\,-14\,\,x^2 +\,10$ $\,14\,\,x^2 +\,10\,\,x$ $\,9\,\,x^2 +\,7\,\,x$ $\,14\,\,x^2 +\,7\,\,x$