Factoriser l'expression :

$(\,8\,x \,-5)(\,7\,y \,-4)+(\,-4\,y \,-5)(\,8\,x \,-5)$

𝑥𝑦□²□³()

Factoriser l'expression :

$\,-7\,x(\,2\,x \,-9) + (\,-4 +\,3\,x)(\,2\,x \,-9)$

𝑥𝑦□²□³()

Factoriser l'expression :

$(\,9 \,-2\,y)(\,8\,x +\,9) - (\,3 +\,y)(\,8\,x +\,9)$

𝑥𝑦□²□³()

Factoriser l'expression :

$(\,4\,x \,-9)^2 +(\,4\,x \,-9)(\,2 \,-2\,x)$

𝑥𝑦□²□³()

Factoriser l'expression :

$(\,-9 +\,7\,x)(\,6\,x +\,2) - (\,6\,x +\,2)(\,-8\,x +\,6)$

𝑥𝑦□²□³()