1.a^6-b^6等于多少
2.x^6-y^6-2x^3+1等于多少
1.a^6-b^6等于多少
2.x^6-y^6-2x^3+1等于多少
1
(a^3)^2-(b^3)^2
=(a^3+b^3)(a^3-b^3)
2
x^6-y^6-2x^3+1
=(x^3-1)^2-(y^3)^2
=(x^3-1+y^3)(x^3-1-y^3)
1.a^6-b^6等于多少
a^6-b^6
=(a³+b³)(a³-b³)
=(a+b)(a²-ab+b²)(a-b)(a²+ab+b²)
2.x^6-y^6-2x^3+1等于多少
.x^6-y^6-2x^3+1
=x³(x³-1)-(x³-1)-y^6
=(x³-1)²-y^6
=(x³-1-y³)(x³-1+y³)