Sagot :
Réponse :SALUTTTTTTT
Explications étape par étape :a) 6(3 x+5)=
18X+30
b) (2x−3)(3 x+1)
6XAU CARRER +2X-9X-3
6XAU CARRER-7X-3
c) (4 x+3)(8 x−4)−(2x+6)²
(32Xau carrer-16X+24X-12)-(2XAU CARRER +24x+36)
(32Xau carrer+8X-12-2Xau carrer-24x-36
30X au carrer -16X -48
a) 6 x 3x + 6 x 5
= 18x + 30
b ) 2x x 3x + 2x - 3 x 3x - 3
= 6x² - 7x - 3
c) 32x² - 16x + 24x - 12 - (2x + 6)²
= 28x² - 16x - 48
= 18x + 30
b ) 2x x 3x + 2x - 3 x 3x - 3
= 6x² - 7x - 3
c) 32x² - 16x + 24x - 12 - (2x + 6)²
= 28x² - 16x - 48