Sagot :
C=x^2 -5x -35x +15 +7x^2 -3x
=8x^2 -43x +15
D= 6az -24 -2az +8 - (18 + 30x -6 -10x)
= 6az -24 -2az +8 -18 -30x +6 +10x
= 4az -20x -28
=8x^2 -43x +15
D= 6az -24 -2az +8 - (18 + 30x -6 -10x)
= 6az -24 -2az +8 -18 -30x +6 +10x
= 4az -20x -28
Bonsoir,
C=xcarré-5x-35x+15+7xcarré-3x
=8xcarré-43x+15
D=6az-24-2az+8-18+30x-6-10x
=4az-40+20x
Je précise que le carré c’est le petit 2