SOLUTION: If b is the solution of the equasion: {{{ x-sqrt( 3x+18 )=0 }}}, then 3b+1= A) 19 B) -8 C) -9 D) 18 E) 10

Algebra ->  Functions -> SOLUTION: If b is the solution of the equasion: {{{ x-sqrt( 3x+18 )=0 }}}, then 3b+1= A) 19 B) -8 C) -9 D) 18 E) 10      Log On


   

Question 1006084: If b is the solution of the equasion: +x-sqrt%28+3x%2B18+%29=0+, then 3b+1=
A) 19
B) -8
C) -9
D) 18
E) 10
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x=sqrt%283x%2B18%29
x%5E2=3x%2B18
x%5E2-3x-18=0
%28x%2B3%29%28x-6%29=0
Either x=-3 OR x=6.