Question

Sederhanakan bentuk aljabar berikut!
1/x+1 - 1/x-1 + 1/x+3

Answer 1

Jawabannya ada di foto yaa :D

Answer 2

=(x - 1)(x + 3)/(x + 1)(x - 1) (x + 3) - (x + 1)(x + 3)/(x + 1)(x - 1)(x + 3) + (x + 1)(x - 1)/(x + 1)(x - 1)(x + 3)
=(x² + 2x - 3)/(x³ + 3x² - 5x - 9) - (x² + 4x + 3)/(x³ + 3x² - 5x - 9) + (x² - 1)/(x³ + 3x² - 5x - 9)
=( (x² + 2x - 3) - (x² + 4x + 3) + (x² - 1) )/(x³ + 3x² - 5x - 9)
=( (1 - 1 + 1)x² + (2 - 4)x + (-3 - 3 - 1) )/(x³ + 3x² - 5x - 9)
=(x² - 2x - 7)/(x³ + 3x² - 5x - 9)