Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
hi my name is pj and i need help with this problem? solve the quadratic equation x2+6x+8=0
 2 years ago
 2 years ago
hi my name is pj and i need help with this problem? solve the quadratic equation x2+6x+8=0
 2 years ago
 2 years ago

This Question is Closed

polpakBest ResponseYou've already chosen the best response.0
You can either factor it, or use the quadratic equation
 2 years ago

polpakBest ResponseYou've already chosen the best response.0
Which do you want to do?
 2 years ago

aama100Best ResponseYou've already chosen the best response.0
{{x = 4}, {x = 2}} ignore my fist post
 2 years ago

polpakBest ResponseYou've already chosen the best response.0
You look for two numbers that add together to give you 6 (the coefficient of the middle term), and multiply to give you 8 (the last term).
 2 years ago

polpakBest ResponseYou've already chosen the best response.0
So what two numbers add to make 6 and multiply to be 8 ?
 2 years ago

polpakBest ResponseYou've already chosen the best response.0
Correct. So we can factor \(x^2+6x+8\) into \((x+4)(x+2)\). And if our original expression was equal to 0 then the factored form will also equal 0. \((x+4)(x+2) = 0 \implies x= 4 \text{ or } x = 2\)
 2 years ago

hatemathBest ResponseYou've already chosen the best response.0
(x+6)(x8)=0 is that x2+6x8=0?
 2 years 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.