化简分式,x²+9x x²-9——— + ————x²+3x x²+6x+9
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/31 13:13:31
![化简分式,x²+9x x²-9——— + ————x²+3x x²+6x+9](/uploads/image/z/1241691-51-1.jpg?t=%E5%8C%96%E7%AE%80%E5%88%86%E5%BC%8F%2Cx%26%23178%3B%2B9x+x%26%23178%3B-9%E2%80%94%E2%80%94%E2%80%94+%2B+%E2%80%94%E2%80%94%E2%80%94%E2%80%94x%26%23178%3B%2B3x+x%26%23178%3B%2B6x%2B9)
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化简分式,x²+9x x²-9——— + ————x²+3x x²+6x+9
化简分式,
x²+9x x²-9
——— + ————
x²+3x x²+6x+9
化简分式,x²+9x x²-9——— + ————x²+3x x²+6x+9
x²+9x/x²+3x+x²-9/x²+6x+9=x(x+9)/x(x+3)+(x+3)(x-3)/(x+3)^2=(x+9)/(x+3)+x-3/x+3=(x+9+x-3)/x+3
=2