hallewilson8 hallewilson8
  • 23-04-2021
  • Mathematics
contestada

Which two values of xare roots of the polynomial below?
5x^2-5x+1

Respuesta :

altavistard
altavistard altavistard
  • 23-04-2021

Answer:

Step-by-step explanation:

Apply the quadratic formula.  The coefficients are {5, -5, 1}.  The discriminant is b^2 - 4ac, which here works out to 25 - 4(5)(1), or 5.  This positive result tells us that this quadratic has two unequal, real roots.  These roots are:

     -(-5) ± √5       5 ± √5

x = --------------- = -------------

           10                  10

Answer Link
Jsf09
Jsf09 Jsf09
  • 23-04-2021

Step-by-step explanation:

can't factor so can use quadratic

5 +/- √(25-20)/10

(5+√5)/10

(5-√5)/10

Answer Link

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