x+1/(x2+2)+(x2-x+2)/(3x+2)=13/6

合乎晴2022-10-04 11:39:541条回答

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OperatorX 共回答了22个问题 | 采纳率90.9%: x+1/(x*2+2)+(x*2-x+2)/(3x+2)=13/6
x+1/(2*(x+1))+(x+2)/(3x+2)=13/6
1/2+(x+2)/(3x+2)=13/6
(x+2)/(3x+2)=13/6-1/2=(13-3)/6=10/6=5/3
(x+2)/(3x+2)=5/3
3(x+2)=5(3x+2)
3x+6=15x+10
12x=-4
x=-1/3; 1年前

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