document.write( "Question 32498This question is from textbook college algebra
\n" ); document.write( ": These probably seem pretty simple, but I'm sorry, I still need help. A little explanation helps me greatly. I appreciate your help and time.\r
\n" ); document.write( "\n" ); document.write( "1)Is square root x squared =x an identity (true for all values of x)?
\n" ); document.write( "2) For the equation x-square root x=0, perform the following: a) solve for all values of x that satisfies the equation. b) Graph the functions y=x and y=square root x on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs. c) How does the graph relate to part a? \n" ); document.write( "
Algebra.Com's Answer #18974 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
1) No. sqrt(-3)^2 = sqrt(9)=3
\n" ); document.write( "2) x-sqrt x = 0
\n" ); document.write( " x = sqrtx
\n" ); document.write( "Square both sides to get:
\n" ); document.write( "x^2=x
\n" ); document.write( "x^2-x=0
\n" ); document.write( "x(x-1)=0
\n" ); document.write( "x=0 or x=1
\n" ); document.write( "Check the solutions in the original equation
\n" ); document.write( "Checking x=0: 0-sqrt0=0 OK
\n" ); document.write( "Checking x=1: 1-sqrt1=0 OK
\n" ); document.write( "3) I'll leave this to you to graph.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "
\n" );