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 2x-3=4(x-5)? And also what is 2x squared=50?

This due right now plz help!!

When escaping domestic violence, which steps are part of the decision-making process? Check all that apply. 1.Call a support line. 2.Make a decision about wheth

Jaleel is determining whether an unknown substance is organic or inorganic. Which positive test verified the substance was organic? It was solid at room tempera

slama cut a wire into 5 equal pieces .the wire was originally 9.75 meters long . how long is each piece

What is the main difference between logistic and exponential growth curves? a. Logistic growth curves never increase exponentially. b. Logistic growth curves st

Is the middle of the Southern state region good for farming?

PLZ HELP 10 POINTS AND MARKED AS BRAINLIEST Read the passage That courage like a rock which she has no more need of and I have Which best explains how the s

"janice needs to write an essay on the history of the new york stock exchange. she decides to first answer the questions of who, what, where, when, why, and how

Find the perimeter of the triangle. A) 70 units Eliminate B) 210 units C) 290 units D) 420 units