作业帮化简5x²+[x²+(5x²-2x)]-2(x²-3x)
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/19 02:18:02
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化简5x²+[x²+(5x²-2x)]-2(x²-3x)
化简5x²+[x²+(5x²-2x)]-2(x²-3x)
化简5x²+[x²+(5x²-2x)]-2(x²-3x)
简5x²+[x²+(5x²-2x)]-2(x²-3x)
= 5x²+x²+5x²-2x-2x²+6x
=9x²+4x
原式= 5x²+6x²-2x-2x²+6x=9x²+4x