document.write( "Question 59318: x^2=49 \n" ); document.write( "

Algebra.Com's Answer #40685 by funmath(2933) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x%5E2=49\"$
\n" ); document.write( " $\"sqrt%28x%5E2%29=%2B-sqrt%2849%29\"$
\n" ); document.write( "When you take the square root of both sides you must keep in mind that 7*7=49 and -7*-7=49
\n" ); document.write( "x=-7 and x=7
\n" ); document.write( ":
\n" ); document.write( "Another way to come up with both answers is:
\n" ); document.write( " $\"x%5E2-49=49-49\"$
\n" ); document.write( " $\"x%5E2-49=0\"$ Factor
\n" ); document.write( " $\"%28x%2B7%29%28x-7%29=0\"$
\n" ); document.write( "x+7=0 and x-7=0
\n" ); document.write( "x=-7 and x=7
\n" ); document.write( "Happy Calculating!!!\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );