A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
flyinglikeabird?
 3 years ago
Solve the quadratic equation 5x2  125 = 0. Show all your steps.
flyinglikeabird?
 3 years ago
Solve the quadratic equation 5x2  125 = 0. Show all your steps.

This Question is Closed

flyinglikeabird?
 3 years ago
Best ResponseYou've already chosen the best response.0I know I do something like x^2  b = c

across
 3 years ago
Best ResponseYou've already chosen the best response.0\[\begin{align} 5x^2125&=0\\ 5x^2&=125\\ x^2&=25\\ x&=\pm5 \end{align}\]

flyinglikeabird?
 3 years ago
Best ResponseYou've already chosen the best response.0You just divided by 5?

merchandize
 3 years ago
Best ResponseYou've already chosen the best response.1To solve this by factoring you first must divide the eqn by 5. Then subtract the righthand result. Now you have the diff of 2 squares you should be able to factor it from there.

flyinglikeabird?
 3 years ago
Best ResponseYou've already chosen the best response.0Okay, factor what?

merchandize
 3 years ago
Best ResponseYou've already chosen the best response.1(x+5)(x5)=0 i.e x=+5,x=5

flyinglikeabird?
 3 years ago
Best ResponseYou've already chosen the best response.0Ohh right! Thank you!
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.