化简:2x^2-3[2x-2(-x^2+2x-1)].
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![化简:2x^2-3[2x-2(-x^2+2x-1)].](/uploads/image/z/7640115-51-5.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A2x%5E2-3%5B2x-2%28-x%5E2%2B2x-1%29%5D.)
化简:2x^2-3[2x-2(-x^2+2x-1)].
化简:2x^2-3[2x-2(-x^2+2x-1)].
化简:2x^2-3[2x-2(-x^2+2x-1)].
2x^2-3[2x-2(-x^2+2x-1)-4]
=2x^2-3[2x+2x^2-4x+2-4]
=2x^2-3[2x^2-2x-2]
=2x^2-6x^2+6x+6
=-4x^2+6x+6