Question

因式分解 求步骤

因式分解 -20p(3p-2)^2 -20p(3p-2)p-5p 答案是 -45p（2p-1）^2
因式分解 x^2 -12xy+36y^2-x+6y 答案是 3x^2y(1+2x)(1-2x)
求详细步骤
那个说错 因式分解 x^6+2x^4 y^2+y^4 x^2-4
答案是（x^2+xy^2+2）（x^2+xy^2-2)

第二题答案和题目打错

Answer 1

-20p(3p-2)^2 -20p(3p-2)p-5p
=-5p[4(9p^2-12p+4)+4(3p-2)+1]
=-5p(36p^2-36p+9)
=-45p(4p^2-4p+1)
=-45p(2p-1)^2

x^2 -12xy+36y^2-x+6y
=(x-6y)^2-(x-6y)
=(x-6y)(x-6y-1)
你那是哪题的答案啊，写错了吧

x^6+2x^4 y^2+y^4 x^2-4
=x^2(x^4+2x^2y^2+y^4)-4
=x^2(x^2+y^2)^2-4
=[x(x^2+y^2)]^2-2^2
=(x^3+xy^2-2)(x^3+xy^2+2)
你答案还是错了

Answer 2

-20p(3p-2)^2 -20p(3p-2)-5p
=(-5p)[4(3p-2)^2+4(3p-2)+1]
=(-5p)[2(3p-2)+1]^2
=(-5p)(6p-3)^2
=-45p(2p-1)^2

x^2 -12xy+36y^2-x+6y
=(x-6y)^2-(x-6y)
=(x-6y)[(x-6y)-1]
=(x-6y)(x-6y-1)
你答案抄错了