Question

谁来帮我分解一下这个因式!(2x^2-3x+1)^2-22x^2+33x-1x^4-7x^2+1

Answer 1

我要指正 winelover72第二题应有理分解

1.(2x^2-3x+1)^2-22x^2+33x-1

=(2x^2-3x+1)^2-22x^2+33x-11+10

=(2x^2-3x+1)^2-11(2x^2-3x+1)+10

=x(x-3)(2x-3)(2x+3)

2.x^4-7x^2+1

=x^4+2x^2+1-9x^2

=(x^2+1)^2-(3x)^2

=(x^2-3x+1)(x^2+3x+1)