document.write( "Question 868023: (1/2)*(2+b)*b=40 \n" ); document.write( "

Algebra.Com's Answer #523307 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%281%2F2%29%2A%282%2Bb%29%2Ab=40\"$
\n" ); document.write( " $\"%282%2Bb%29%2Ab=80\"$
\n" ); document.write( " $\"b%5E2%2B2b-80=0\"$
\n" ); document.write( " $\"%28b%2B10%29%28b-8%29=0\"$
\n" ); document.write( "Two solutions:
\n" ); document.write( " $\"b%2B10=0\"$
\n" ); document.write( " $\"b=-10\"$
\n" ); document.write( "and
\n" ); document.write( " $\"b-8=0\"$
\n" ); document.write( " $\"b=8\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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