Question

Tentukanlah hasil dari:

Answer 1

((m² - n² + m - n)/(m² - 2mn + n²)) × ((10 n - 10m)/(5m + 5n + 5))
= ((m + n)(m - n) + (m - n)/(m - n)(m - n)) × (10(n - m)/5(m + n + 1))
= ((m - n)(m + n + 1)/(m - n)(m - n)) × (2(n - m)/(m + n + 1))
= ((m + n + 1)/(m - n)) × (2(n - m)/(m + n + 1))
= (1/(m - n) × (2(n - m))
= 2(n - m)/(m - n)
= -2(m - n)/(m - n)
= -2

Jadi hasil akhirnya adalah -2