Fin the value of p of equation x(x-4)+P=0
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x(x-1)+p =0 ,or,p= x-x^2
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x^2-4x+p=0
x^2-2x-2x+p=0
x (x-2)-2 (x-p)=0
x-2 (x-p)=0
x=2=p
p=2
x^2-2x-2x+p=0
x (x-2)-2 (x-p)=0
x-2 (x-p)=0
x=2=p
p=2
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