Tolong bantu! Buat bsok

1.) a^(p+q-r)
2.) 10^12 - 10^11 / 9 = (10 - 1 = 9)
9×10^11 / 9 =10^11

3.) 64^(2/3) × 125^(1/6) × 1/5^(1/2) =
16 × 5^(1/2) × 1/5^(1/2) =
16 × 5^(1/2 - 1/2) =
16

6.)√(17 + 4√15) =
√(17 + 2√60) =
√5 + √12

7.) (4 + √3 / 4 - √3) × (4 + √3 / 4 + √3) =
(16 + 8√3 + 3) / 16 - 3 =
19 + 8√3 / 13

8.) 2^3(3x+2)= 2^4(3/4)
2^(9x + 6) = 2^3 { 2 dicoret}
9x + 6 = 3
9x = 3 - 6
9x = -3
x = -1/3

9.)