4(a²-1-(3a-2)/2)-15[(2a²-5)/3-(a-3)/5]请化简可以现去括号,然后化简,
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![4(a²-1-(3a-2)/2)-15[(2a²-5)/3-(a-3)/5]请化简可以现去括号,然后化简,](/uploads/image/z/8793519-15-9.jpg?t=4%28a%26%23178%3B-1-%283a-2%29%2F2%29-15%5B%282a%26%23178%3B-5%29%2F3-%28a-3%29%2F5%5D%E8%AF%B7%E5%8C%96%E7%AE%80%E5%8F%AF%E4%BB%A5%E7%8E%B0%E5%8E%BB%E6%8B%AC%E5%8F%B7%2C%E7%84%B6%E5%90%8E%E5%8C%96%E7%AE%80%2C)
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4(a²-1-(3a-2)/2)-15[(2a²-5)/3-(a-3)/5]请化简可以现去括号,然后化简,
4(a²-1-(3a-2)/2)-15[(2a²-5)/3-(a-3)/5]请化简
可以现去括号,然后化简,
4(a²-1-(3a-2)/2)-15[(2a²-5)/3-(a-3)/5]请化简可以现去括号,然后化简,
原式
=4a²-4-2(3a-2)-5(2a²-5)-3(a-3)
=4a²-4-6a+4-10a²+25-3a+9
=4a²-10a²-6a-3a+(4-4+25+9)
=-6a²-9a+34