化简下面各题.急,(1)3x²-8x-5a²+2x+4-3x-1
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![化简下面各题.急,(1)3x²-8x-5a²+2x+4-3x-1](/uploads/image/z/1988065-1-5.jpg?t=%E5%8C%96%E7%AE%80%E4%B8%8B%E9%9D%A2%E5%90%84%E9%A2%98.%E6%80%A5%2C%281%293x%26%23178%3B%EF%BC%8D8x%EF%BC%8D5a%26%23178%3B%EF%BC%8B2x%EF%BC%8B4%EF%BC%8D3x%EF%BC%8D1)
化简下面各题.急,(1)3x²-8x-5a²+2x+4-3x-1
化简下面各题.急,
(1)3x²-8x-5a²+2x+4-3x-1
化简下面各题.急,(1)3x²-8x-5a²+2x+4-3x-1
3x²-8x-5x²+2x+4-3x-1
=3x²-5x²+2x-8x-3x+4-1
=-2x²-9x+3
3x²-8x-5a²+2x+4-3x-1
=3x²-9x+3-5a²