A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
how do i do quadratics equations??
i get totally loss when im doing this
anonymous
 one year ago
how do i do quadratics equations?? i get totally loss when im doing this

This Question is Open

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What about quadratic equations?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay so first off lets identify quadratics

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0x^2x+1=0 is a quadratic

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How do you know this you may ask? Well first off the X's exponent cuts in half

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now to solve for a quadratic there are two ways that are most commonly used

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0First there is the Quadratic Formula that you may or may not know, which is

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0o.O im confused once more

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[b \pm \sqrt{b^24ac//2}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0We could solve a quadratic if you have one available and i'll walk you through the steps.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Would you like to solve a simple quadratic with me?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you know how to solve this?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1there is a typo you forgot  and a at the denominator \[\huge\rm \frac{ \color{red}{ }b \pm \sqrt{b^2 4ac} }{ 2\color{reD}{a} }\] quadratic formula where abc values are \[\huge\rm Ax^2 +Bx+C=0\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Nnesha Sorry thank you for catching that :D

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok onlii_bri lets try to solve to quadratic above, would you like to use the quadratic formula or split it up?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433635733307:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dats how my teacher taught how to do it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Lets do a different way for now,

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'll work out the entire problem then i want you to try okay?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ummm i have ncse in my country and my maths test is monday i need to learn it that way

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Idk how to do it that way sorry :( i only know how i learnt it from my algebra 2 and algebra 1 teachers.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Maybe you are getting lost because your using a very traditional way of doing it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im still on basic algebra

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh okay, thats alright let me give you a little lesson on quadratics and it will make it a whole lot easier to understand, ask me any questions as i go.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That is how you identify a quadratic

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now they can also look like this 3x^2+9x+10=0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Quadratics must always be equal to zero in order to be a quadratic.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Lets solve for the quadratic above very quickly.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433636159214:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0First step is to multiply what is Squared by the constant. in this case we have 3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now you must break down the multiples of 30 to see if any of them add up to 9.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well scratch that there are no multiplies of 30 that can add up or subtract to equal 9, so in this case we will use the quadratic formula.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433636365799:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433636435572:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now you just plug in those numbers into the equation then plug into your calculator.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If you need anymore help just ask, were all here to help.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Also just so you know the B is the lower case b in the equation above i just capitalized it by accident.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0https://www.youtube.com/watch?v=3ayhvAI3IeY use this to help 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.