SOLUTION: Find the sum of all values of a such that the point (a,7) is {{{3sqrt( 5 ) }}} from the point (2,1).

Algebra ->  Coordinate-system -> SOLUTION: Find the sum of all values of a such that the point (a,7) is {{{3sqrt( 5 ) }}} from the point (2,1).      Log On


   

Question 1068379: Find the sum of all values of a such that the point (a,7) is 3sqrt%28+5+%29+ from the point (2,1).
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%28%28a-2%29%5E2%2B%287-1%29%5E2%29=3sqrt%285%29

Simplify and square both sides,
Square both sides first; and then simplify,... continue...