document.write( "Question 410187: How do i solve:
\n" ); document.write( "z² + 8z + 7 ≤ 0 \n" ); document.write( "

Algebra.Com's Answer #288505 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"z%5E2+%2B+8z+%2B+7+%3C=+0\"$
\n" ); document.write( "Solve by completing the square
\n" ); document.write( " $\"z%5E2+%2B+8z+%2B+%288%2F2%29%5E2+%3C=+%288%2F2%29%5E2+-+7\"$
\n" ); document.write( " $\"z%5E2+%2B+8z+%2B+16+%3C=+16+-+7\"$
\n" ); document.write( " $\"%28z+%2B+4%29%5E2+%3C=+11\"$
\n" ); document.write( " $\"z+%2B+4+%3C=+sqrt%2811%29\"$
\n" ); document.write( " $\"z+%3C=+sqrt%2811%29+-+4\"$
\n" ); document.write( "and
\n" ); document.write( " $\"z+%3C=+-sqrt%2811%29+-+4\"$ \n" ); document.write( "

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