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(x+2分之x+3)+(x²-4分之2-x)=要有计算步骤

题目详情
(x+2分之x+3)+(x²-4分之2-x)= 要有计算步骤
▼优质解答
答案和解析
(x+3)/(x+2)+(2-x)/(x²-4)
=(x+3)/(x+2)+(2-x)/[(x+2)(x-2)]
=(x+3)/(x+2)-1/(x+2)
=(x+3-1)/(x+2)
=(x+2)/(x+2)
=1