数学题```解方程:(x^2+x-3)/(x^2+x-2)+1=(2x^2+4x+1)/(x^2+2x+1)偶笨``不会计```

Question

数学题```
解方程:
(x^2+x-3)/(x^2+x-2)+1=(2x^2+4x+1)/(x^2+2x+1)
偶笨``不会计```

Answer 1

化简原等式得
[(x^2+x-2)-1]/(x^2+x-2)+1=[2(x^2+2x+1)-1]/(x^2+2x+1)
2-1/(x^2+x-2)=2-1/(x^2+2x+1)
x^2+x-2=x^2+2x+1,
且x^2+x-2和x^2+2x+1均不等于0
x=-3