x2+4x-5= [tex] \frac{x2 + 4x - 5}{x - 1} [/tex]

Kelas 8 Matematika
Bab Operasi Aljabar

1] x² + 4x - 5
= x² - x + 5x - 5
= x (x - 1) + 5 (x - 1)
= (x + 5) (x - 1)

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