一些因式分解的题~(1)(x^2+y^2)^2-(z^2-x^2)^2-(y^2+z^2)^2(2)(c^2-a^2-b^2)^2-4a^2b^2(3)(1-a^2)(1-b^2)-(a^2-1)^2(b^2-1)^2(4)x^6n+2+2x^3n+2+x^2(5)9(a+1)^2(a-1)^2-6(a^2-1)+(b+1)^2(b-1)^2(6)已知(4x^2y-2y-1)^2+√xy-2=0,求4x^2-4x^2y^2+xy^2的值(

Question

一些因式分解的题~
(1)(x^2+y^2)^2-(z^2-x^2)^2-(y^2+z^2)^2
(2)(c^2-a^2-b^2)^2-4a^2 b^2
(3)(1-a^2)(1-b^2)-(a^2-1)^2(b^2-1)^2
(4)x^6n+2+2x^3n+2+x^2
(5)9(a+1)^2(a-1)^2-6(a^2-1)+(b+1)^2(b-1)^2
(6)已知(4x^2y-2y-1)^2+√xy-2=0,求4x^2-4x^2y^2+xy^2的值
(7)已知a=10000,b=9999,求a^2+b^2-2ab-6a6b9的值

Answer 1

①-2z^4+2(x^2y^2+z^2x^2+y^2z^2) 由于（a+b）^2=a^2+2ab+b^2 减号一样的②c^4+b^4+a^4-a^2b^2-2b^2c^2-2a^2c^2③ a^4b^4+a^4+b^4+2-2a^4b^2-2b^4a^2-3a^2-3b^2+5a^2b^2④（x^3n+2)^2+x^2⑤不是-6（a^2-1）,应...