
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
September 21st, 2018, 11:47 AM  #1 
Newbie Joined: Aug 2018 From: Utah Posts: 6 Thanks: 0  Checking for Errors in Textbook
I have beat my head over this question over and over, and I still can't see how the book gets its answer. I would like you guys to see what you get before I send a note to the author. k × 3^2 − ( j + k ) − 5 ; use j = 4 , k = 5 I get 31 for this, but the book says 36. My guess is that they failed to calculate the "  5 " at the end. Last edited by skipjack; September 21st, 2018 at 08:32 PM. 
September 21st, 2018, 11:59 AM  #2 
Senior Member Joined: May 2016 From: USA Posts: 1,210 Thanks: 497 
$j = 4 \text { and } k = 5 \implies k * 3^2  (j + k)  5=$ $5 * 3^2  (4 + 5)  5 = 5 * 3^2  9  5 = = 5 * 9  14 = 45  14 = 31.$ 

Tags 
checking, errors, textbook 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
experimental errors  taylor_1989_2012  Probability and Statistics  0  March 15th, 2016 03:55 PM 
ONE OF MANY ERRORS IN CALCULUS2  mishin05  Calculus  1  December 18th, 2012 04:27 PM 
ONE OF MANY ERRORS IN CALCULUS3  mishin05  Calculus  1  December 18th, 2012 02:27 PM 
ONE OF MANY ERRORS IN CALCULUS.  mishin05  Calculus  9  December 18th, 2012 01:28 PM 