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

sasogeekBest ResponseYou've already chosen the best response.2
multiply the coefficient of the x^2 term by the constant and find 2 factors of the result that when you add or subtract will give you the x coefficient, replace the x coefficient with the two factors in a way that when you subtract or add them, you'll get the x coefficient. you'll get 4 terms. take the first two terms and factor them, take the last two terms and factor them. you're done. if you didn't understand what i've just written, read it carefully again, take your time, and solve it.
 one year ago

KingBest ResponseYou've already chosen the best response.0
You can use the quadratic equation formula (b +orsqrt(b^24ac))/2a here a,b,c are the coefficients ax^2+bx+c
 one year ago

KingBest ResponseYou've already chosen the best response.0
understood? @alexeis_nicole
 one year ago

alexeis_nicoleBest ResponseYou've already chosen the best response.0
yep.. i got 24 and 26... :S ?
 one year ago

alexeis_nicoleBest ResponseYou've already chosen the best response.0
I MEAN ... 1.5 AND 1.75?
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Quadratic Formula in an easiertoread form: \[x=\frac{b\pm \sqrt{b^24ac}}{2a}\] Binomials will be written as (where a, b, and c are numerical constants) \[ax^2 + bx + c\] You can always check your factorization by multiplying it back together to get the original expanded form (what you have initially here).
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
1.5 and 1.75 are correct, but put them in fraction form and you'll have a huge hint ;)
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Huge hint: \[\frac {numerator}{demominator} = \frac {c}{a}\]
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
(ax+c)(ax+c) (but different a's and c's, call them a1 & c1 and a2 & c2 if you want)
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Here's one of the two, so you're not getting confused: 7/4 > (4x+7)
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Here's how to check, solve this: \[4x+7 = 0 \]
 one year ago

alexeis_nicoleBest ResponseYou've already chosen the best response.0
OH !!!!! (2x3) (4x+7)
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Do you see why the /+ sign switches?
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
So here's the next step they'll probably introduce you to later, they'll ask you to solve this: \[8x^2 + 2x 21 = (2x3)(4x+7) = 0\]
 one year 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.