$\,-4\;(\,-6\,-4\,x) = $   ?

$\,24 \,-8\,x$ $\,24 \,-4\,x$ $\,-10 \,-8\,\,x$ $\,24 \,-16\,\,x$ $\,24 +\,4\,\,x$ $\,24 +\,16\,\,x$

$\,4\,b\;(\,-4\,b+\,6\,a) = $   ?

$\,-16\,\,b^2 +\,24\,\,a\,b$ $\,-16\,\,b^2 +\,24\,a$ $\,16\,\,b^2 +\,10\,\,a\,b$ $\,-16\,\,b^2 +\,6\,a$ $\,-16\,\,b^2 \,-24\,a$ $\,0\,\,b^2 +\,10\,\,a\,b$

$\,2\,b\;(\,9\,b+\,1) = $   ?

$\,11\,\,b^2 +\,3\,\,b$ $\,-18\,b +\,2\,\,b$ $\,18\,\,b^2 +\,3\,\,b$ $\,18\,\,b^2 +\,1$ $\,18\,\,b^2 \,-2$ $\,18\,\,b^2 +\,2\,\,b$

$(\,3\,b+\,3)\;(\,6\,-\,b) = $   ?

$\,-3\,\,b^2 \,-15\,\,b +\,18$ $\,3\,\,b^2 \,-21\,\,b +\,18$ $\,3\,\,b^2 +\,15\,\,b \,-18$ $\,-3\,\,b^2 +\,15\,\,b +\,18$

$(\,x\,-4)\;(\,-\,y\,-5) = $   ?

$\,\,x\,y \,-5\,\,x +\,4\,\,y \,-20$ $\,\,x\,y \,-5\,\,x \,-4\,\,y +\,20$ $\,-\,\,x\,y \,-5\,\,x +\,4\,\,y +\,20$ $\,-\,\,x\,y \,-5\,\,x \,-4\,\,y +\,20$

$(\,t\,-3)\;(\,4\,-6\,t) = $   ?

$\,-6\,\,t^2 +\,22\,\,t \,-12$ $\,-6\,\,t^2 +\,22\,\,t +\,12$ $\,-6\,\,t^2 \,-22\,\,t \,-12$ $\,6\,\,t^2 \,-14\,\,t \,-12$

$(6+6y)(6-6y) = $   ?

$36 \,- 36\,y^2$ $6 \,- 36\,y^2$ $6 \,- 6y$ $36\, +72\,y\,+ 36\,y^2$

Quelle est l'expression factorisée de $\,4\,\,y\;+\,5\,\,y^2$ ?

$\,y\;(\,4\,y\;+\,5)$ $\,y\;(\,4\;+\,y)$ $\,y\;(\,4\;+\,5\,y)$ $\,y\;(\,4\;+\,4\,y)$

Quelle est l'expression factorisée de $\,-2\;+\,16\,\,x$ ?

$\,2\;(\,-1\;+\,16\,x)$ $\,2\;(\,-1\;+\,x)$ $\,2\;(\,-1\;+\,8\,x)$ $\,2\,x\;(\,-1\;+\,8\,x)$

Factoriser l'expression :

$(\,2\,x +\,5)(\,-7\,y +\,7)+(\,-2\,y +\,6)(\,2\,x +\,5)$

𝑥𝑦□²□³()