Tentukan hasil operasi hitung berikut! a) 5^-4 b) 3^-3 + 2^-3 c) 8(2a^2b)^-4 d) 12(a+b)/4(a+b+c)^0 ^=pangkat

Bab Eksponensial
Matematika SMP kelas IX

a] 5^-4 = 1/(5^4) = 1/625

b] 3^-3 + 2^-3
= 1/(3³) + 1/2³
= 1/27 + 1/8
= (8 + 27)/(27 x 8)
= 35/216

c] 8 (2a² b)^(-4)
= 8/(2a²b)⁴
= 8/(2⁴ a²ˣ⁴ b⁴)
= 8/(16 a⁸ b⁴)
= 1/(2 a⁸ b⁴)

d] 12 (a + b) / (4 (a + b + c)⁰)
= 12 (a + b) / (4 . 1)
= 3 (a + b)
= 3a + 3b