令 A = √[(a-x)/(b+x)],则
A + 1/A = 10/3
(3A -1)(A - 3) = 0
A = 1/3 或A = 3
√[(a-x)/(b+x)]=1/3 和 √[(a-x)/(b+x)]=3,可得:
x=(a-9b)/10或(9a-b)/10
令 A = √[(a-x)/(b+x)],则
A + 1/A = 10/3
(3A -1)(A - 3) = 0
A = 1/3 或A = 3
√[(a-x)/(b+x)]=1/3 和 √[(a-x)/(b+x)]=3,可得:
x=(a-9b)/10或(9a-b)/10