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May 30th, 2015, 01:48 AM  #1 
Newbie Joined: May 2015 From: usa Posts: 6 Thanks: 0 Math Focus: trigonometry  Make x the subject
Make x the subject in the following equation. axÂ² + f/e = b Answer: axÂ² + f = be xÂ² =be â€“ f/a x = âˆšbe â€“ f/a 
May 30th, 2015, 02:00 AM  #2 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,963 Thanks: 1148 Math Focus: Elementary mathematics and beyond 
Please use parentheses to clarify your work.

May 30th, 2015, 03:24 AM  #3 
Global Moderator Joined: Dec 2006 Posts: 20,966 Thanks: 2215 
If axÂ² + f/e = b (without parentheses) was intended, the result should be x = Â±âˆš((b  f/e)/a). If (axÂ² + f)/e = b was intended, correct working would be axÂ² + f = be xÂ² = (be â€“ f)/a x = Â±âˆš((be â€“ f)/a). 

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