(x+¼)²-(x-¼)(x+¼)=¼ 等于多少啊
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(x+¼)²-(x-¼)(x+¼)=¼ 等于多少啊
(x+¼)²-(x-¼)(x+¼)=¼ 等于多少啊
(x+¼)²-(x-¼)(x+¼)=¼ 等于多少啊
(x+¼)²-(x-¼)(x+¼)=¼
(x+¼)²-(x-¼)(x+¼)-¼ = 0
x^2 + 2*1/4* x +(¼)²- x^2 +( ¼)^2 - ¼ = 0
1/2 x +1/16+1/16-1/4= 0
x+1/8+1/8-1/2=0
x-1/4=0
x=1/4