Question

The quadratic equation whose one of the root is -5+2√3 is​

Answer 1

Answer:

9 is the right answer sure

Answer 2

Answer:

The quadratic equation is x²-10x+12

Step-by-step explanation:

The root of quadratic equation is = -5+2√3

The another root is = -5-2√3

The product of roots is = (-5+2√3)(-5-2√3)

= 25 - 4×3 = 13

The sum of roots is = (-5+2√3)+(-5-2√3)

= -10

The formula is = x²+Sx+P

So, quadratic equation is = x²-10x+12

That is your answer.