Question

Tentukan nilai X jika ada yg memenuhi persamaan berikut |2x - 1| = |x+3|. yg tw cepet jawab ya.? mw dikumpulkan bsok tugasnya

Answer 1

|2x - 1| = |x+3|
(2x - 1 )^2 = ( x+3)^2
4x^2-4x+1 = x^2+6x+9
4x^2 - x^2-4x-6x+1-9 = 0
3x^2 - 10x - 8 = 0
(3x + 2) (x - 4) = 0
3x + 2 = 0. x - 4 = 0
x = -2/3. x = 4