mohon bantuannya kaka kaka,pake cara ya

Bab Aljabar
Matematika SMA Kelas X

a] x/2 - (3x/4) - 1
= (2x/4) - (3x/4) - 4/4
= (-x - 4)/4

b] 1/(x - 1) + 2/(x - 3)
= (x - 3 + 2x - 2) / ((x - 1) (x - 3))
= (3x - 5) / (x² - 4x + 3)

Bab aljabar kelas7 kan ini jawabanya
a] x/2 - (3x/4) - 1
= (2x/4) - (3x/4) - 4/4
= (-x - 4)/4

b] 1/(x - 1) + 2/(x - 3)
= (x - 3 + 2x - 2) / ((x - 1) (x - 3))
= (3x - 5) / (x² - 4x + 3)