Sagot :
bjr
4x² - 4x - 24 = 4 (x² - x - 6)
soit
Δ = (-1)² - 4*1*(-6) = 25
=> x' = (1+5)/2 = 3
x'' = (1-5)/2= -2
=> = 4 (x - 3) (x + 2)
bjr
4x² - 4x - 24 = 4 (x² - x - 6)
soit
Δ = (-1)² - 4*1*(-6) = 25
=> x' = (1+5)/2 = 3
x'' = (1-5)/2= -2
=> = 4 (x - 3) (x + 2)