document.write( "Question 70687: How do you solve this problem: The square route of k+9 minus the square route of k equals 3. \n" ); document.write( "

Algebra.Com's Answer #50463 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
The square route of k+9 minus the square route of k equals 3.
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\n" ); document.write( "It's not square route; it's square root.
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\n" ); document.write( "sqrt(k+9) - sqrt(k) = 3
\n" ); document.write( "Isolate one of the sqrt terms, as follows:
\n" ); document.write( "sqrt(k+9)= sqrt(k) + 3
\n" ); document.write( "Square both sides to get:
\n" ); document.write( "k+9 = k+6sqrtk+9
\n" ); document.write( "6sqrt(k)=0
\n" ); document.write( "sqrtk=0
\n" ); document.write( "k=0
\n" ); document.write( "----------
\n" ); document.write( "Check that answer in the original equation:
\n" ); document.write( "sqrt(0+9) -sqrt(0)= 3
\n" ); document.write( "sqrt(0) - 0 = 3
\n" ); document.write( "3=3
\n" ); document.write( "It checks out alright.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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