Answered

IDNLearn.com: Where your questions meet expert advice and community insights. Discover in-depth and trustworthy answers to all your questions from our experienced community members.

if the quadratic formula is used to find the roots of the equation x^2-6x-19=0, the correct roots are ?

Sagot :

Panoyinidn
x² + px + q = 0
x² - 6x - 19 = 0
x = 1(-p + √p² - 4q)
      2
x = 1(-(-6) + √-(6)² - 4(-19)
      2
x = 1(6 + √-36 + 76)
      2
x = 1(6 + √40)
      2
x = 1(6 + √4 × 2 × 5)
      2
x = 1(6 + √4 √2 √5)   
      2
x = 1(6 + 2 √2 √5)
      2
x = 1(6 + 2 √2 √5)      x = 1(6 - 2 √2 √5)
      2                                2
x = 1(8 √2 √5)            x = 1(4 √2 √5)
      2                                2
x = 4(0.5)(1.25)          x = 2(0.5)(1.25)
x = 2.5                       x = 1.25
We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. IDNLearn.com is dedicated to providing accurate answers. Thank you for visiting, and see you next time for more solutions.