SOLUTION: If the sqaure of a positive integer is added to three times the integer, the result is 28. Find the integer. Need help setting up the problem and possible solving. Once it is se

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: If the sqaure of a positive integer is added to three times the integer, the result is 28. Find the integer. Need help setting up the problem and possible solving. Once it is se      Log On


   

Question 108668This question is from textbook
: If the sqaure of a positive integer is added to three times the integer, the result is 28. Find the integer.
Need help setting up the problem and possible solving. Once it is set up, I am good with solving it. PLEASE help~ This question is from textbook

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the sqaure of a positive integer ... x^2

is added to ... +

three times the integer ... 3x

the result is 28 ... =28

x^2+3x=28 ... x^2+3x-28=0 ... (x+7)(x-4)=0