" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Bab AljabarMatematika SMP Kelas VIII
9] 4/a + 4/(a - 2) = (4 . (a - 2) + 4 . a)/(a . (a - 2))
= (4a - 8 + 4a)/(a² - 2a)
= (8a - 8) / (a² - 2a)
13] a/(a + b) + b/(a - b) = (a . (a - b) + b (a + b))/((a + b) (a - b))
= (a² - ab + ab + b²) / (a² - b²)
= (a² + b²)/(a² - b²)