Bonjour
Développer chacune des expressions littérales suivantes :
A= (3x+4)²*
A = 9x² + 24x + 16
B=(10x-7)²
B = 100x² - 140x + 49
C=(9x-10)*(9x+10)
C = 81x² - 100
D=(3x+8)*(8x-3)
D = 24x² - 9x + 64x - 24
D = 24² + 55x - 24
E= (7/6x - 9/5)²
E = 49/36x² - 126/60x - 81/25
E = 49/36x - 21/10x - 81/25.
F= -(10x-1) *(x+10)
F = - (10x² + 100x - x - 10)
F = - 10x² - 100x + x + 10
F = - 10x² - 99x + 10
