The quadratic formula and equilibrium problems

[soulja101]

can i always the quadratic forumula when i m doing these types of problems. my teacher said i can but sometimes theirs faster ways to do it

 

[chemisttree]

You can use any method that is valid, includig the quadratic equation when it applies.

 

[mysqlpress]

Taking approximation if available

 

[rocomath]

if you're equil constant is smaller than 10^-5 or if the percent error is like 5%, then it's ok

i forget how to calculate % error but just stick to 10^-5 and leave X out of your calculations