How do u solve this: Find the roots of the quadratic equation x2 − 8x + 8 = 0 .

x1 = x2 =

Question

How do u solve this: Find the roots of the quadratic equation x2 − 8x + 8 = 0 .

x1 =      x2 =

anonymous · Answer

Do you know the quadratic formula?

anonymous · Answer

a=1 , b= -8 , c=8
usding the equation 
x1= 4+2sqrt2
x2= 4-2sqrt2

anonymous · Answer

so we just plug it into the quadratic formula and it gives us those two answers?

anonymous · Answer

yes.
$$ax^2 + bx + c = 0 \implies x = \frac{-b\pm \sqrt{b^2-4ac}}{2a}$$

anonymous · Answer

yes,

anonymous · Answer

thanks guys

radar · Answer

Car2021 your equation can be factored giving you;
(x-8)(x-1)

radar · Answer

Since this product is 0 you know that the factors are zero (at least one or both)
x=8 and x=1

anonymous · Answer

@radar i don't think it can be factrorized, try to spread what you type u will get x^2 -9x+8

radar · Answer

Hey funky girl  you are so right and that does not equal the equation.  Please ignore Car2021 and thanks for straightening me out lol

anonymous · Answer

You are welcome =)