Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

osansevieroBest ResponseYou've already chosen the best response.1
\[10a ^{2}20a+8\] Do I need to use the general formula?
 5 months ago

hartnnBest ResponseYou've already chosen the best response.1
solve ? if you want to solve you need an equation (with =0) do you want to factor this ?
 5 months ago

hartnnBest ResponseYou've already chosen the best response.1
yes what ? factor or solve ?
 5 months ago

hartnnBest ResponseYou've already chosen the best response.1
then yes, you'll need a quadratic formula
 5 months ago

hartnnBest ResponseYou've already chosen the best response.1
Compare your quadratic equation with \(ax^2+bx+c=0\) find \[a=...?\\b=...?\\c=...?\\\] \[ \\ \sqrt{b^24ac}=...?\] then the two roots of x are: \(\huge{x_{1,2}=\frac{b \pm \sqrt{b^24ac}}{2a}}\)
 5 months ago

osansevieroBest ResponseYou've already chosen the best response.1
\[\frac{ 20\pm4\sqrt{5} }{ 20 }\]
 5 months ago

osansevieroBest ResponseYou've already chosen the best response.1
Am I correct until here?
 5 months ago

hartnnBest ResponseYou've already chosen the best response.1
b =20 right ? so, b =+20
 5 months ago

hartnnBest ResponseYou've already chosen the best response.1
yeah, then factor out the '4' from the numerator
 5 months ago
See more questions >>>
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.