求单项式3分之2x²y,-3分之2x²y,4分之1x²y的和.
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![求单项式3分之2x²y,-3分之2x²y,4分之1x²y的和.](/uploads/image/z/1644728-32-8.jpg?t=%E6%B1%82%E5%8D%95%E9%A1%B9%E5%BC%8F3%E5%88%86%E4%B9%8B2x%26%23178%3By%2C-3%E5%88%86%E4%B9%8B2x%26%23178%3By%2C4%E5%88%86%E4%B9%8B1x%26%23178%3By%E7%9A%84%E5%92%8C.)
求单项式3分之2x²y,-3分之2x²y,4分之1x²y的和.
求单项式3分之2x²y,-3分之2x²y,4分之1x²y的和.
求单项式3分之2x²y,-3分之2x²y,4分之1x²y的和.
3分之2x²y+(-3分之2x²y)+4分之1x²y
=3分之2x²y-3分之2x²y+4分之1x²y
=(3分之2-3分之2+4分之1)x²y
=4分之1x²y
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4分之1x²y
2/3x²y-2/3x²y+1/4x²y
=0+1/4x²y
=1/4x²y