Jadi:
b/a = (2n-6)/(n-3)
b/a = (2(n-3))/(n-3)
b/a = 2
4. Sederhanakan operasi perpangkatan berikut ini.
a. y³ × (3y)²
Jawaban:
= y³ × (3y)²
= y³ × 3² × y²
= 9 × y³⁺²
= 9 y⁵
b. √b 2y⁵ × b³ 6 y²
Jawaban:
= √b 2y⁵ × b³ 6 y²
= b¹⸍² . 2 y⁵ × b³ . 6 y²
= b¹⸍²⁺³. 12 . y⁵⁺²
= b⁷⸍² . 12 . y⁷
= b⁷⸍² 12 y⁷
c. (tn³)⁴ × 4t³