elijah6842 elijah6842
  • 02-12-2020
  • Mathematics
contestada

Solve the following quadratic by completing the square. (Hint: It won't factor) x2-10x+5=0

Respuesta :

cindo2793 cindo2793
  • 02-12-2020

[tex]5+2\sqrt{5} , 5-2\sqrt{5}[/tex]    Answer:   5±2[tex]\sqrt{5}[/tex]

Step-by-step explanation:

x2 -10x=5=0

x2-10x+25=-5+25

(x-5)(x-5)=20

[tex](x-5)^{2} =\sqrt{20}[/tex]

[tex]\sqrt{x-5}=\sqrt{20}[/tex]

x-5=±[tex]\sqrt{20[/tex]

x=5±[tex]\sqrt{5*4[/tex]

x=5±2[tex]\sqrt{5}[/tex]

Answer Link

Otras preguntas

What plus what equals 360
If the 10th of the 10 consecutive numbers is 10, what is their sum?
The revolution that resulted in the abolition of slavery and the first republic in the western hemisphere governed by descendants of enslaved african immigrants
5. Which of the following statements is not true regarding atmospheric pressure? A. You calculate absolute pressure by adding atmospheric pressure to
The tendency to perceive members of an outgroup as more similar to one another, than members of the ingroup is called the a. contrast effect. b. minimal group e
In what ways did the attack influence American foreign policy in its immediate aftermath?
Select the proper meaning. nucleus unknown quality central part small detail
Marcus is buying clothing from a wholesaler to sell his shop. The wholesaler is offering suits at $125 each plus $35 extra for a matching tie. What is the grea
Which themes distinguish literature written in the realist era from earlier literature? A. everyday life and common subjects B. tragedy and extreme ci
How did the twelfth amendment change the constitution?