SOLUTION: Use the quadratic formula to solve each equation. x^2/2 + 5/2x = -1 The answer in my book for this problem is (-5 + sqrt17)/2 or (-5 - sqrt17)/2 I am having trouble figuring

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Use the quadratic formula to solve each equation. x^2/2 + 5/2x = -1 The answer in my book for this problem is (-5 + sqrt17)/2 or (-5 - sqrt17)/2 I am having trouble figuring       Log On


   

Question 44698This question is from textbook Intermediate Algebra
: Use the quadratic formula to solve each equation.
x^2/2 + 5/2x = -1
The answer in my book for this problem is (-5 + sqrt17)/2 or (-5 - sqrt17)/2
I am having trouble figuring out how to get this answer. This was my latest attempt to it.
x^2/2 + 5/2x = -1
2x^2 + 5x = -2
2x^2 + 5x + 2 = 0
+-5%2Bplus_minus-sqrt%285%5E2+-+4%2A2%2A2%29%2F%282%2A2%29+
+-5%2Bplus_minus-sqrt%2825+-+16%29%2F4+
+-5%2Bplus_minus-sqrt%289%29%2F4+
Im lost as to what I am doing wrong with this one.


This question is from textbook Intermediate Algebra

Answer by adamchapman(301) About Me  (Show Source):
You can put this solution on YOUR website!
You are right. The book is wrong. This is bound to happen sometimes when the aurthor of the book has probably put hundreds of answers in the book. Everyone makes a mistake sometimes.
This happened to me when I was at school. I wrote a letter to the book publisher, and they corrwected the error in the book and sent me a free copy of the new book with a thankyou note!