document.write( "Question 314866: -5(a-4)+4squared = 7a \n" ); document.write( "

Algebra.Com's Answer #225184 by Fombitz(32388) $\"\"$ $\"About$

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Did you mean 4*a squared
\n" ); document.write( " $\"-5%28a-4%29%2B4a%5E2+=+7a\"$
\n" ); document.write( "or 4squared??
\n" ); document.write( " $\"-5%28a-4%29%2B4%5E2+=+7a\"$
\n" ); document.write( " $\"-5a%2B20%2B16=7a\"$
\n" ); document.write( " $\"36=2a\"$
\n" ); document.write( " $\"highlight%28+a=18%29\"$
\n" ); document.write( ".
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\n" ); document.write( "If you meant the first one,
\n" ); document.write( " $\"-5%28a-4%29%2B4a%5E2+=+7a\"$
\n" ); document.write( " $\"-5a%2B20%2B4a%5E2+=+7a\"$
\n" ); document.write( " $\"4a%5E2-5a%2B20=7a\"$
\n" ); document.write( " $\"4a%5E2-12a%2B20=0\"$
\n" ); document.write( " $\"a%5E2-3a%2B5=0\"$
\n" ); document.write( "Use the quadratic formula,
\n" ); document.write( " $\"a+=+%28-%28-3%29+%2B-+sqrt%28+%28-3%29%5E2-4%2A1%2A5+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"a+=+%283+%2B-+sqrt%28+9-20+%29%29%2F2+\"$
\n" ); document.write( " $\"a+=+%283+%2B-+sqrt%28+-11%29%29%2F2+\"$
\n" ); document.write( " $\"highlight%28+a+=+%283+%2B-+sqrt%2811%29i%29%2F2+%29\"$ \n" ); document.write( "

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