化简:(2x-1)²-(3x+1)×(3x-1)-5x(1-x)=
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![化简:(2x-1)²-(3x+1)×(3x-1)-5x(1-x)=](/uploads/image/z/401690-2-0.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%EF%BC%882x-1%EF%BC%89%26%23178%3B-%EF%BC%883x%2B1%29%C3%97%EF%BC%883x-1%EF%BC%89-5x%EF%BC%881-x%EF%BC%89%3D)
化简:(2x-1)²-(3x+1)×(3x-1)-5x(1-x)=
化简:(2x-1)²-(3x+1)×(3x-1)-5x(1-x)=
化简:(2x-1)²-(3x+1)×(3x-1)-5x(1-x)=
(2x-1)²-(3x+1)×(3x-1)-5x(1-x)
=4x²-4x+1-9x²+1-5x+5x²
=-9x+2
=4x²-4x+1-9x²+1-5x+5x²
=-9x+2
(2x-1)²-(3x+1)×(3x-1)-5x(1-x)
=4x²-4x+1-9x²+1-5x+5x²
=-9x+2