Question

x²-4x-1 middle splitting term please!!
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Answer 1

Answer:

2+root5 or 2-root5

Step-by-step explanation:

Let x^2-4x-1=0

Now adding 5 both side

x^2-4x-1+5=5

x^2-4x+4=5

x^2-2x-2x+4=5

x(x-2)-2(x-2)=5

(x-2)(x-2)=5

(x-2)^2=5

x-2=+ or -root5

x=2+ or -root5

so x can be 2+root5 or 2-root5