document.write( "Question 135764: Please help me solve this equation:\r
\n" ); document.write( "\n" ); document.write( "(y+3)(y-4)=-2 \n" ); document.write( "

Algebra.Com's Answer #99505 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28y%2B3%29%28y-4%29+=+-2\"$
\n" ); document.write( " $\"y%5E2+%2B+3y+-+4y+-+12+=+-2\"$
\n" ); document.write( " $\"y%5E2+-+y+-+12+=+-2\"$
\n" ); document.write( " $\"y%5E2+-+y+-+10+=+0\"$
\n" ); document.write( "You can solve using complete the square method
\n" ); document.write( " $\"y%5E2+-+y+=+10\"$
\n" ); document.write( " $\"y%5E2+-+y+%2B+%281%2F2%29%5E2+=+10+%2B+%281%2F2%29%5E2\"$
\n" ); document.write( " $\"%28y+-+%281%2F2%29%29%5E2+=+40%2F4+%2B+1%2F4\"$
\n" ); document.write( " $\"%28y+-+%281%2F2%29%29%5E2+=+41%2F4\"$
\n" ); document.write( "take square root of both sides
\n" ); document.write( " $\"y+-+%281%2F2%29+=+%280+%2B-sqrt%2841%29%29+%2F+2\"$ }
\n" ); document.write( " $\"y+=+%281+%2B+sqrt%2841%29%29%2F2\"$
\n" ); document.write( " $\"y+=+%281+-+sqrt%2841%29%29%2F2\"$
\n" ); document.write( "check answers
\n" ); document.write( " $\"%28y%2B3%29%28y-4%29+=+-2\"$
\n" ); document.write( " $\"%28%281+%2B+sqrt%2841%29%29%2F2+%2B+3%29%28%281+%2B+sqrt%2841%29%29%2F2+-+4%29+=+-2\"$
\n" ); document.write( "Multiply both sides by $\"4\"$
\n" ); document.write( " $\"%281+%2B+sqrt%2841%29+%2B+6%29%281+%2B+sqrt%2841%29+-+8%29+=+-8\"$
\n" ); document.write( " $\"%287+%2B+sqrt%2841%29%29%28-7+%2B+sqrt%2841%29%29+=+-8\"$
\n" ); document.write( " $\"-49+%2B+41+=+-8\"$
\n" ); document.write( " $\"-8+=+-8\"$
\n" ); document.write( "OK\r
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