aider moi svp
developer reduire ordoner
a:(3x+7)(4x+3)-(5x+2)
b:2x-4(2x-5)-(2x+9)
c:4x-3+7x-4+9x
d:(2x-3)-(6x+3)-4x
e:(3x-2)(5x+3)-(2x+7)
f:9(3x+4)(5x-9)
g:2x(4x-2)-(4x+7)
h:(3x-1)(3x+1
developer reduire ordoner
a:(3x+7)(4x+3)-(5x+2)
b:2x-4(2x-5)-(2x+9)
c:4x-3+7x-4+9x
d:(2x-3)-(6x+3)-4x
e:(3x-2)(5x+3)-(2x+7)
f:9(3x+4)(5x-9)
g:2x(4x-2)-(4x+7)
h:(3x-1)(3x+1
More Questions From This User See All
Lista de comentários
Verified answer
Développer, réduire et ordonnera:(3x+7)(4x+3)-(5x+2)
= 12x² + 9x + 28x + 21 - 5x - 2
= 12x² + 9x + 28x - 5x + 21 - 2
= 12x² + 32x + 19
b:2x-4(2x-5)-(2x+9)
= 2x - 8x + 20 - 2x - 9
= 2x - 8x - 2x + 20 - 9
= - 8x + 11
c:4x-3+7x-4+9x
= 4x + 7x + 9x - 3 - 4
= 20x - 7
d:(2x-3)-(6x+3)-4x
= 2x - 3 - 6x - 3 - 4x
= 2x - 6x - 4x - 3 - 3
= - 8x - 6
e:(3x-2)(5x+3)-(2x+7)
= 15x² + 9x - 10x - 6 - 2x - 7
= 15x² + 9x - 10x - 2x - 6 - 7
= 15x² - 3x - 13
f:9(3x+4)(5x-9)
= 9 (15x² - 27x + 20x - 36)
= 135x² - 162x + 180x - 324
= 135x² + 18x - 324
g:2x(4x-2)-(4x+7)
= 8x² - 4x - 4x - 7
= 8x² - 8x - 7
h:(3x-1)(3x+1)
= 9x² + 3x - 3x - 1
= 9x² - 1