Question

answer for question #7. (1 and 3part)

Answer 1

1)    3ⁿ * (3²) ⁽ⁿ⁺¹⁾ / [ 3ⁿ⁻¹ * (3²)ⁿ⁻¹ ]    =   3³ⁿ⁺² / 3³ⁿ⁻³   = 3⁵

2)  5 X 25ⁿ⁺¹  / [ 5  * 25²ⁿ⁺³ ]  = 25ⁿ⁺¹⁻²ⁿ⁻³ = 25⁻ⁿ⁻² = 5⁻²ⁿ⁻⁶ = 1/ 5²ⁿ⁺⁶

3)  [ 5ⁿ * 125 - 6 * 5ⁿ * 5 ] / [ 9 * 5ⁿ - 4 * 5ⁿ ]  ,,  5ⁿ cancels 
        95 / 5 = 19

4) 6 * 8ⁿ⁺¹ / 10 * 2³ = 2 * 3 * (2³)ⁿ⁺¹ / [ 2 * 5 * 2³ ]
        = 2³ⁿ * 3/5  or      3/5 * 8ⁿ