Question

if a- 1/a=2 then find the value a⁴-6a²+1​

Answer 1

Answer:

=> a-1 = 2a

=> a = - 1

=>a⁴ - 6a² + 1

=> (-1)⁴ - 6(-1)² + 1

=> 1 - 6 + 1

=> - 4

Answer 2

Answer:

Step-by-step explanation:

a-1/a = 2

a-1 = 2a

-1 = 2a-a

a = -1

Hence,

a⁴-6a²+1 = (-1)⁴-6(-1)²+1 = 1-6+1 = -4