carol94 carol94

03-11-2014
Mathematics

contestada

i need help with math 1010
completing the square
x^2-9x=10

Respuesta :

konrad509 konrad509

03-11-2014

[tex]x^2-9x=10|+20.25\\ x^2-9x+20.25=30.25\\ (x-4.5)^2=30.25\\ x-4.5=5.5 \vee x-4.5=-5.5\\ x=10 \vee x=-1[/tex]

Answer Link

Otras preguntas

What is the first stylistic period from which notated music has come down to us? a. baroque b. middle ages c. classical d. romantic?

Which property is x ( y + z) = xy + xz

What major algebra topic did john napier contribute?

maria has always been against gun control.but in a debate for class, she has to argue for it .now she thinks gun control might be a good idea this is an example

Terms whose variables are the same are called what?

Compare the spectra produced by incandescent and fluorescent sources. Why is there a difference?

ASAP!!! PLEASE HELP!!!Recall what you have learned about the history of Europe during the 20th century. Then, in two to three paragraphs, explain how the event

In most instances, words which are different in varous dialects are words related to

Glycogen is stored in which region of a muscle fiber?

Why didn't the physician prescribe an antibiotic for botulism?