Solve the radical equation √3x-1+1=√3x+6

A.  {-19/3}.    B.  {19/3}.  C.  {6}.   D.  {-2}
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1 Answer

 ​3x-1+2√(3x-1)+1=3x+6, 2√(3x-1)=6, √(3x-1)=3, 3x-1=9, x=10/3. (Squaring to get rid of the radical.)

Test: put x=10/3 in the original:

√9 + 1=3 + 1=4, and √10+6=√16=4. So x=10/3 is the answer.  Answer B should be {10/3}.

by Top Rated User (1.2m points)

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