化简:x/(x²+x)÷(x²+x-2)/(x²-1)+(x+1)/(x+2)
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原式=x/x(x+1)÷(x-1)(x+2)/(x+1)(x-1)+(x+1)/(x+2)
=(x+1)÷(x+2)/(x+1)+(x+1)/(x+2)
= 1/(x+2)+(x+1)/(x+2)
=(x+2)/(x+2)
=1
=(x+1)÷(x+2)/(x+1)+(x+1)/(x+2)
= 1/(x+2)+(x+1)/(x+2)
=(x+2)/(x+2)
=1
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