Question

If a+1 by a =4 then the value of a^2-1 by a^3 is ?

Answer 1

Answer:

so here a+1/a =4

then a+1=4a

3a=1 therefore a=1/3

a²-1 = 1²/3² -1=1/9-1

a³=1³/3³=1/27

if u simplify this u will get 1/9×27-1

which is nothing but 2

Answer 2

Answer:

sorry idk bye anyeseyongh