Question

. (x^2- 1)(x^2+ 1) solve using identity ​

Answer 1

Answer:

x⁴ - 1

Step-by-step explanation:

(x² - 1) (x² + 1) = (x²)² - (1)²

                     = x⁴ - 1

Identity used: (a + b) (a - b) = a² - b²

Hope it helps!!!