SOLUTION: 5n^2-7n+2=0

Algebra.Com
Question 419345: 5n^2-7n+2=0
Found 2 solutions by jim_thompson5910, MathLover1:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Start with the given equation.


Notice we have a quadratic equation in the form of where , , and


Let's use the quadratic formula to solve for n


Start with the quadratic formula


Plug in , , and


Negate to get .


Square to get .


Multiply to get


Subtract from to get


Multiply and to get .


Take the square root of to get .


or Break up the expression.


or Combine like terms.


or Simplify.


So the answers are or

If you need more help, email me at jim_thompson5910@hotmail.com

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

.....factor...replace with
...group first to and second two terms



if ....->...
if ....->...

so, your solutions are:
or

RELATED QUESTIONS

5n+34=-2(1-7n) (answered by jim_thompson5910)
5n+34=-2(1-7n) (answered by rfer)
5n+34=-2(1-7n) (answered by jim_thompson5910,rfer)
5n+34=-2(1-7n) (answered by MathLover1)
perimeter of... (answered by checkley77)
how do u do... (answered by ewatrrr)
n^2-4n-3n^2+7n+5n^2 (answered by Fombitz)
(5n+5)/5n^2+35n-40 + 7n/3n Need to simplify (adding rational... (answered by MathLover1)
(n^2+5n+6/n^2+7n+12)(n^2+9n+20/n^2+11n+30)=... (answered by Earlsdon,jim_thompson5910,jsmallt9)