Sagot :
A = 6 x 3 - (-1)² = 18 - 1 = tu peux finir
B = 36 + (-3)² -2 = 36 + 9 - 2 tu peux finir
C = 2 (x + 3) = 2*x + 2*3 = 2x + 6
D = (x - 4) (x + 2) = x*x + x*2 - 4*x - 4*2 = x² + 2x - 4x - 8 = x² - 2x - 8
A = 6 x 3 - (-1)² = 18 - 1 = tu peux finir
B = 36 + (-3)² -2 = 36 + 9 - 2 tu peux finir
C = 2 (x + 3) = 2*x + 2*3 = 2x + 6
D = (x - 4) (x + 2) = x*x + x*2 - 4*x - 4*2 = x² + 2x - 4x - 8 = x² - 2x - 8