SOLUTION: Solve 21n^2-10=n
Algebra
->
Equations
-> SOLUTION: Solve 21n^2-10=n
Log On
Algebra: Equations
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Equations
Question 731492
:
Solve 21n^2-10=n
Answer by
checkley79(3341)
(
Show Source
):
You can
put this solution on YOUR website!
21n^2-10=n
21n^2-n-10=0
(3n+2)(7n-5)=0
3n+2=0
3n=-2
n=-2/3 ans.
7n-5=0
7n=5
n=5/7 ans.