Jawab:

Penjelasan dengan langkah-langkah:

1.a. (3^2. 4^-3. 25^2)/(9. 16. 5^-3)

(3^2. 2^-6. 5^4)/(3^2. 2^4. 5^-3)

(2^-10. 5^7)

5^7/2^-10

b. 81^ (x + 2) = 9^ (3x - 1)

(3^4)^(x + 2) = (3^2)^ (3x - 1)

4(x + 2) = 2(3x - 1)

4x + 8 = 6x - 2

4x - 6x = -2 - 8

-2x = - 10

x = 5

c. 6 ✓27 + ✓75

6. 3✓3 + 5✓3

18✓3 + 5✓3

23✓3

d. ⁴log 6. ⁶log 64

⁴log 64

⁴log 4³

3

3x + 2y = 9 /2/ 6x + 4y = 18

2x - 3y = 19 /3/ 6x - 9y = 57

______________________ -

______________13y = - 39

3x + 2y = 9 /3/ 9x + 6y = 27

2x - 3y = 19 /2/ 4x - 6y = 38

______________________ -

_____________5x = - 19, x = - 19/5