Math, asked by dubeyarchana1981, 2 months ago

x²-4x-1 middle term splitting​

Answers

Answered by choudharytannu2001
1

Answer:

formula:- (-b+√(b^2-4ac))/2a

(-b-√(b^2-4ac))/2a

Step-by-step explanation:

apply this formula you will get the answer as direct splitting is not possible.

Answered by Anonymous
0

Answer:

2+\sqrt{5} and 2-\sqrt{5}

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 -\sqrt{5}

x=2+ or -\sqrt{5}

so x can be 2+\sqrt{5} or 2-\sqrt{5}

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