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

About how far does the flag have to travel to complete full rotation?1. 37.68 ft2. 75.36 ft3. 150.72 ft4. 452.16 ftPlease explain if possible!
dwedcev s4sdvsdsdfsdf
Tracy received a $21.00 gift card for phone apps. Shehas used $9.00 of the value and wants to buy onemore app from the list shown to use up the balance.Complete
I need to know what a cordanate plain is
Gaby's piggy bank contains quarters and nickels worth $7.50. If she has 58 coins in all, howmany of each does she have?
can someone please help me find the value of x
The triangles are similar. What are the measurements of the angles?
Clint is making a 10-lb bag of trail mix for his upcoming backpacking trip. Thechocolates cost $3.00 per pound and mixed nuts cost $6.00 per pound and Clint has
How many grams of FeSO4 (molar mass = 151.9 g/mol) are present in a 200.0 mL sample of a 0.250 M solution? Enter your answer with 3 significant figures and do n
In the given diagram, line segment BDbisects angle ABC. Segment BDis extended to E, where line segment ECis parallel to line segment AB.Write a two-column proof