a(1-x)^2=a(1-36%)

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a(1-x)^2=a(1-36%)a(1-x)^2=a(1-36%)a(1-x)^2=a(1-36%)把a去掉(1-x)^2=0.641-x=±0.8x1=0.2x2=1.8a不为00.2或1.8全部

a(1-x)^2=a(1-36%)
a(1-x)^2=a(1-36%)

a(1-x)^2=a(1-36%)

把a去掉

(1-x)^2=0.64
1-x=±0.8
x1=0.2 x2=1.8

a不为0
0.2或1.8

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