Question

x4-x2+1)(x4-x2-1) by using suitable identity ​

Answer 1

Answer:

(2x+1) (2x-1)=(2x^2) -(1^2) ((a+b) (a-b)=a^2-b^2

Answer 2

(x⁴-x²+1) (x⁴-x²-1)

= (x⁴-x²)² - (1)²

= (x⁴)² - 2.x⁴.x² + (x²)² - 1

= x^8 - 2x^6 + x⁴ - 1