Question

(x-1)(x+1)(x^2+1)(x^4+1)

Answer 1

Ola Marcia

(x - 1)*(x + 1)*(x² + 1)*(x⁴ + 1) =

(x² - 1)*(x² + 1)*(x⁴ + 1) = (x⁴ - 1)*(x⁴ + 1) = x⁸ - 1

.