已知x的倒数和绝对值都是它本身,y,z是有理数,并且丨y+3丨+(2x+3z)²=0,求(5x-2yz)÷(-x³+y²-5);)(-x³+y²-5)和(5x-2yz)有分数线我只是比较方便打上来的,
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![已知x的倒数和绝对值都是它本身,y,z是有理数,并且丨y+3丨+(2x+3z)²=0,求(5x-2yz)÷(-x³+y²-5);)(-x³+y²-5)和(5x-2yz)有分数线我只是比较方便打上来的,](/uploads/image/z/13307094-54-4.jpg?t=%E5%B7%B2%E7%9F%A5x%E7%9A%84%E5%80%92%E6%95%B0%E5%92%8C%E7%BB%9D%E5%AF%B9%E5%80%BC%E9%83%BD%E6%98%AF%E5%AE%83%E6%9C%AC%E8%BA%AB%2Cy%2Cz%E6%98%AF%E6%9C%89%E7%90%86%E6%95%B0%2C%E5%B9%B6%E4%B8%94%E4%B8%A8y%2B3%E4%B8%A8%2B%EF%BC%882x%2B3z%EF%BC%89%26%23178%3B%3D0%2C%E6%B1%82%EF%BC%885x-2yz%EF%BC%89%C3%B7%EF%BC%88-x%26%23179%3B%2By%26%23178%3B-5%EF%BC%89%EF%BC%9B%EF%BC%89%EF%BC%88-x%26%23179%3B%2By%26%23178%3B-5%EF%BC%89%E5%92%8C%EF%BC%885x-2yz%EF%BC%89%E6%9C%89%E5%88%86%E6%95%B0%E7%BA%BF%E6%88%91%E5%8F%AA%E6%98%AF%E6%AF%94%E8%BE%83%E6%96%B9%E4%BE%BF%E6%89%93%E4%B8%8A%E6%9D%A5%E7%9A%84%2C)
已知x的倒数和绝对值都是它本身,y,z是有理数,并且丨y+3丨+(2x+3z)²=0,求(5x-2yz)÷(-x³+y²-5);)(-x³+y²-5)和(5x-2yz)有分数线我只是比较方便打上来的,
已知x的倒数和绝对值都是它本身,y,z是有理数,并且丨y+3丨+(2x+3z)²=0,求(5x-2yz)÷(-x³+y²-5);)(-x³+y²-5)和(5x-2yz)有分数线我只是比较方便打上来的,
已知x的倒数和绝对值都是它本身,y,z是有理数,并且丨y+3丨+(2x+3z)²=0,求(5x-2yz)÷(-x³+y²-5);)(-x³+y²-5)和(5x-2yz)有分数线我只是比较方便打上来的,
已知x的倒数和绝对值都是它本身,
x=1;
y,z是有理数,并且丨y+3丨+(2x+3z)²=0,
y+3=0;y=-3;
2x+3z=0;
z=-2/3;
求(5x-2yz)÷(-x³+y²-5);)
=(5×1-2×(-3)×(-2/3))÷(-1+9-5)
=(5-4)/(3)
=1/3;
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