xx+2x+1=36,x怎么解,

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x*x+2*x+1=36,x怎么解,x*x+2*x+1=36,x怎么解,x*x+2*x+1=36,x怎么解,x^2+2x+1=36(x+1)^2=36x+1=±6x1=5,x2=-7

x*x+2*x+1=36,x怎么解,
x*x+2*x+1=36,x怎么解,

x*x+2*x+1=36,x怎么解,
x^2+2x+1=36
(x+1)^2=36
x+1=±6
x1=5,x2=-7

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