jademarie564
jademarie564 jademarie564
  • 21-02-2018
  • Mathematics
contestada

What are the roots of the polynomial equation? x^2−12x−64=0

Respuesta :

wolf1728
wolf1728 wolf1728
  • 21-02-2018
It is a quadratic equation so we can use the quadratic formula to solve it.
x^2−12x−64=0
a = 1
b = -12
c = -64
x = [-b +-sq root (b^2 -4ac)]  / 2a
x = [--12 +-
sq root (144 -4*1*-64)] / 2
x = [12 +- 20] / 2
x1 = 16
x2 = -4


Answer Link

Otras preguntas

Describe two ways how social media platforms are abused ​
Describe two ways how social media platforms are abused ​
8th grade math A box of chocolates contains 3 milk chocolates 2 dark chocolates, and 1 white chocolate You randomly select and eat three chocolates What is the
Choose the right word or phrase that completes this sentence. The supported the British in the war.
What is the Spanish word for folder? el libro la carpeta el libro el cuaderno
(1) Please bring that pen ? (add a tag questions?)​
What is the rationale behind the optimal choice of the consumer?
1.Identify three jobs and three careers. What do they have in common? How do they differ? 2.Discuss the cost and benefits of choosing a career instead of a job
Which of these is a quantitive measure of fitness? A-The time taken to run a mile B-A persons weight C- whether a person can touch their toes D-how much weight
Which one does not belong? Explain your reasoning