SOLUTION: cross multiply the proportion 500x=(x-5)(500+5x) Cross multiply and solve 600(x+20=(600-x)/x solve 12(9-x)+12(9+x)=3 finally x^2+24=(x+1)^2-25

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: cross multiply the proportion 500x=(x-5)(500+5x) Cross multiply and solve 600(x+20=(600-x)/x solve 12(9-x)+12(9+x)=3 finally x^2+24=(x+1)^2-25      Log On


   

Question 35731: cross multiply the proportion
500x=(x-5)(500+5x)
Cross multiply and solve
600(x+20=(600-x)/x
solve 12(9-x)+12(9+x)=3
finally
x^2+24=(x+1)^2-25
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
500x=(x-5)(500+5x) or 500x=500x-2500+5x~2-25x or 5x~2-25x-2500=0 or
(x-25)(x+20)=0 or x=25 & x=-20