Question

simplify the following
(x²+x+1)(x²-x+1)

Answer 1

I hope it will help you

Answer 2

(x²+x+1) ( x²-x+1),

We can write it as

[(x²+1) + x] [(x²+1) - x]

using (a+b)(a-b)=(a²-b²) here

(x²-1)² - x²

(x²)² + (1)² -2×x²×1 - x²,

x⁴ + 1 - 2x²-x²,

x⁴ + 1 - 3x²