document.write( "Question 840519: Express f(x) in the form a(x − h)2 + k.
\n" ); document.write( "f(x) = −
\n" ); document.write( "3
\n" ); document.write( "4
\n" ); document.write( "x2 + 15x − 77
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #506202 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Is your equation $\"f%28x%29=-%283%2F4%29x%5E2%2B15x-77\"$ ??
\n" ); document.write( "You need to complete the square.
\n" ); document.write( " $\"f%28x%29=-%283%2F4%29%28x%5E2-%284%2F3%2915x%5E2%29-77\"$
\n" ); document.write( " $\"f%28x%29=-%283%2F4%29%28x%5E2-20x%5E2%29-77\"$
\n" ); document.write( " $\"f%28x%29=-%283%2F4%29%28x%5E2-20x%5E2%2B100%29-77%2B%283%2F4%29%28100%29\"$
\n" ); document.write( " $\"f%28x%29=-%283%2F4%29%28x-10%29%5E2-77%2B75\"$
\n" ); document.write( " $\"highlight%28f%28x%29=-%283%2F4%29%28x-10%29%5E2%2B2%29\"$ \n" ); document.write( "

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