document.write( "Question 46214: $\"Image$ \n" ); document.write( "

Algebra.Com's Answer #30687 by longjonsilver(2297) $\"\"$ $\"About$

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$\"+sqrt%2849%29+\"$ is +7 or -7
\n" ); document.write( "So, likewise $\"+-+sqrt%2849%29+\"$ is +7 or -7\r
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\n" ); document.write( "\n" ); document.write( "So this is equivalent to -7.\r
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\n" ); document.write( "\n" ); document.write( " $\"+sqrt%28-49%29+\"$ is not solveable (at least not until you do maths at higher levels).\r
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\n" ); document.write( "\n" ); document.write( "Jon
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