计算(x²+x+1)(x²-x+1)(x²+x+1)(x²-x+1)=
问题描述:
计算(x²+x+1)(x²-x+1)
(x²+x+1)(x²-x+1)
=
答
原式=(x²+1+x)(x²+1-x)=(x²+1)²-x²=x^4+x²+1
答
= (x^2+1)^2 - x^2
= x^4 + x^2 + 1
答
(x²+x+1)(x²-x+1)=
(x²+1+x)(x²+1-x)=
(x² + 1)² - x² =
x^4 + 2x² + 1 - x² =
x^4 + x² + 1
答
(x²+x+1)(x²-x+1)
=(x²+1)²-x²
=x^4+2x^2+1-x^2
=x^4+x^2+1.