Question

factorise 16a³-2/a³+6a-3/a​

Answer 1

Answer:

a = 2^1/3 - 2^(-1/3)

a + 2^(-1/3)= 2^1/3…………………(1(

On cubing both sides

a^3 +3.a.2^(-1/3)(a+2^(-1/3)+ 2^-1 =2

putting {a+ 2^(-1/3)}=2^1/3 from eq (1).

a^3+3.a.2^(-1/3)(2^1/3) +1/2= 2

or 2a^3+6a +1 =4

or 2a^3+6a - 3 = 0 , Answer