document.write( "Question 513449: Hi, can you help me please with this equation?\r
\n" );
document.write( "\n" );
document.write( "Square root of (3x+10) = x+2
\n" );
document.write( "Upon solving, I got x= -3 and x= 2.
\n" );
document.write( "When I plugged in the roots, I did not get the check for x= -3. I got
\n" );
document.write( "Square root of (-9+10) = -3+2
\n" );
document.write( "1 = -1 which is FALSE; thus, x = -3 is NOT the solution. And only x = 2 is the solution. Is that right or not? Please help me answer this question and tell me if x = -3 is or is NOT the solution? \r
\n" );
document.write( "\n" );
document.write( "Thank you so much. \r
\n" );
document.write( "\n" );
document.write( "I. \n" );
document.write( "
Algebra.Com's Answer #343021 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! (-1)^2 = 1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "sqrt(1) = ±1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "both of your solutions work \n" ); document.write( " |