16 ^ 6 * 9 ^ 21 * 4 ^ 28 / (144 ^ 20)
16 ^ 6 * 9 ^ 21 * 4 ^ 28 / (144 ^ 20)
(2^4)^6 * (3^2)^21 * (2^2)^28 : (2^4*3^2)^20 =
= 2^24*2^56 * 3^42 : (2^80 * 3^40) =
= 2^(80 - 80) * 3^(42 - 40) =
= 2^0 * 3^2 = 1*9 = 9
2²⁴*3⁴²*2⁵⁶÷6⁴⁰*2⁴⁰
3⁴²*2⁵⁶÷6⁴⁰*2¹⁶
3⁴²*2⁵⁶÷2⁴⁰3⁴⁰*2¹⁶
3²*2⁴⁰÷2⁴⁰
3²