A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
use the quadratic formula to solve the equation x^2+3=4x
anonymous
 5 years ago
use the quadratic formula to solve the equation x^2+3=4x

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0bring over the 4x to the LHS. then your equation is of the form ax^2 + bx + c = 0 then use the quadratic formula.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so what is the answer, i'm not good at doing this ?!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[x^2+4x+3=0\] \[(x+1)(x+3)=0\] \[x=1\] or \[x=3\]

gw2011
 5 years ago
Best ResponseYou've already chosen the best response.0The quadratic formula is: x=[b+/square root (b^24ac)]/2a x^2+4x+3 a=1 because the coefficient of x^2 is 1 b=4 c=3 x=[(4)+/square root( 4^24*1*3)]/2(1) x=[(4)+/square root(1612)]/2 x=(4)+/square (4)]/2 x=(4+/2)/2 x=(4+2)/2=2/2=1 x=(42)/2=6/2=3 Therefore, x=1 and x=3 You will notice that this problem can be solved without using the quadratic formula as satellite73 has shown. However, since your problem stated that you needed to solve this problem by using the quadratic formula, the above is the way of using the quadratic formula.
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.