anonymous
  • anonymous
How do u solve this: Find the roots of the quadratic equation x2 − 8x + 8 = 0 . x1 = x2 =
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Do you know the quadratic formula?
anonymous
  • anonymous
a=1 , b= -8 , c=8 usding the equation x1= 4+2sqrt2 x2= 4-2sqrt2
anonymous
  • anonymous
so we just plug it into the quadratic formula and it gives us those two answers?

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anonymous
  • anonymous
yes. \[ax^2 + bx + c = 0 \implies x = \frac{-b\pm \sqrt{b^2-4ac}}{2a}\]
anonymous
  • anonymous
yes,
anonymous
  • anonymous
thanks guys
radar
  • radar
Car2021 your equation can be factored giving you; (x-8)(x-1)
radar
  • radar
Since this product is 0 you know that the factors are zero (at least one or both) x=8 and x=1
anonymous
  • anonymous
@radar i don't think it can be factrorized, try to spread what you type u will get x^2 -9x+8
radar
  • radar
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
  • anonymous
You are welcome =)

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