x^4-x^2y^2+16y
=x^2(x^2-y^2)+16y
=x^2(x-y)(x+y)+16y
分不下去了,看下题目写错没
a^6-b^6
=(a^3-b^3)(a^3+b^3)
=(a-b)(a^2+ab+b^2)(a+b)(a^2-ab+b^2)
2010x^2-(2010^2-1)x-2010
=(2010x+1)(x-2010)
x^4-x^2y^2+16y
=x^2(x^2-y^2)+16y
=x^2(x-y)(x+y)+16y
分不下去了,看下题目写错没
a^6-b^6
=(a^3-b^3)(a^3+b^3)
=(a-b)(a^2+ab+b^2)(a+b)(a^2-ab+b^2)
2010x^2-(2010^2-1)x-2010
=(2010x+1)(x-2010)