初3题16(x+5)^2-8(x+5)+1=0求x等多少?

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初3题16(x+5)^2-8(x+5)+1=0求x等多少?初3题16(x+5)^2-8(x+5)+1=0求x等多少?初3题16(x+5)^2-8(x+5)+1=0求x等多少?16(x+5)^2-8(x

初3题16(x+5)^2-8(x+5)+1=0求x等多少?
初3题16(x+5)^2-8(x+5)+1=0求x等多少?

初3题16(x+5)^2-8(x+5)+1=0求x等多少?
16(x+5)^2-8(x+5)+1=0 ∴[4(x+5)-1]=0 ∴4(x+5)-1=0 ∴4x+20-1=0 ∴4x=-19 解得:x=-19/4

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