document.write( "Question 252613: sqrt x+3=81 1)What is the value of x+3?
\n" );
document.write( " 2)What is the value of x?
\n" );
document.write( " 3)What is the value of 3*sqrt x+3? \n" );
document.write( "
Algebra.Com's Answer #184629 by drk(1908)![]() ![]() ![]() You can put this solution on YOUR website! Let's take it one part at a time. YOu were given the following equation: \n" ); document.write( " \n" ); document.write( "--- \n" ); document.write( "1)What is the value of x+3? \n" ); document.write( "We square both sides to get \n" ); document.write( "x + 3 = 81^2 \n" ); document.write( "or \n" ); document.write( "x + 3 = 6561 \n" ); document.write( "--- \n" ); document.write( "2)What is the value of x? \n" ); document.write( "subtract 3 from both sides to get \n" ); document.write( "x = 6558 \n" ); document.write( "--- \n" ); document.write( "3)What is the value of 3*sqrt x+3? \n" ); document.write( "we already know, sqrt(x+3) = 81, so, \n" ); document.write( "3*sqrt(x+3) = 3*81 = 243. \n" ); document.write( " |