Question

From the quadratic equations in x whose roots are 2+root 5 and 2-root 5​

Answer 1

Step-by-step explanation:

I hope you will get this.

Answer 2

Answer:

x=2+√5, and,x=2-√5.

the formula of quadratic equations:-x^2-(a+b)x+(ab).

Step-by-step explanation:

putting the value in equation:-

we know that-

(a+b)=-b/a, and ab=c/a.

{(2+√5)+(2-√5)}={2+√5+2-√5}.

=4. =(a+b)=4.

{(2+√5)×(2-√5)}={4-2√5+2√5-5}

= -1. =(ab)= -1.

then, put the value in equation

[x^2-4x+(-1)].

x^2-4x-1. ----------quadratic equation.