document.write( "Question 553738: Give exact and aproximate solutions to y^2-10y+25=49 \n" ); document.write( "

Algebra.Com's Answer #361030 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Both sides are perfect squares
\n" ); document.write( " $\"+y%5E2+-+10y+%2B+25+=+49+\"$
\n" ); document.write( " $\"+%28+y+-+5+%29%5E2+=+7%5E2+\"$
\n" ); document.write( "Take square root of both sides
\n" ); document.write( " $\"+y+-+5+=+7+\"$
\n" ); document.write( " $\"+y+=+12+\"$
\n" ); document.write( "and also
\n" ); document.write( " $\"+y+-+5+=+-7+\"$
\n" ); document.write( " $\"+y+=+-2+\"$
\n" ); document.write( "check answers:
\n" ); document.write( " $\"+12%5E2+-+10%2A12+%2B+25+=+49+\"$
\n" ); document.write( " $\"+144+-+120+%2B+25+=+49+\"$
\n" ); document.write( " $\"+24+%2B+25+=+49+\"$
\n" ); document.write( " $\"+49+=+49+\"$
\n" ); document.write( "OK
\n" ); document.write( " $\"+%28-2%29%5E2+-+10%2A%28-2%29+%2B+25+=+49+\"$
\n" ); document.write( " $\"+4+%2B+20+%2B+25+=+49+\"$
\n" ); document.write( " $\"+49+=+49+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );