初中到高中的衔接的数学题请教
y^2(x^2-2x)^3+y^2 是因式分解的题目...要写出过程
参考答案:y^2(x^2-2x)^3+y^2
=y^2[(x^2-2x)^3+1]
=y^2[(x^2-2x)+1][(x^2-2x)^2-(x^2-2x)+1]
=y^2(x^2-2x+1)(x^4-4x^3+4x^2-x^2+2x+1)
=y^2(x-1)^2(x^4-4x^3+3x^2+2x+1)
y^2(x^2-2x)^3+y^2 是因式分解的题目...要写出过程
参考答案:y^2(x^2-2x)^3+y^2
=y^2[(x^2-2x)^3+1]
=y^2[(x^2-2x)+1][(x^2-2x)^2-(x^2-2x)+1]
=y^2(x^2-2x+1)(x^4-4x^3+4x^2-x^2+2x+1)
=y^2(x-1)^2(x^4-4x^3+3x^2+2x+1)