document.write( "Question 977321: x^2+kx+36 what is the value of k for which the expression is a perfect square trinomial \n" ); document.write( "

Algebra.Com's Answer #598848 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
k=12 or k=-12, but you probably want to see some steps.\r
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\n" ); document.write( "\n" ); document.write( "You are looking for (x+6)(x+6) because you know you want the constant term to be 36. You can also try using descriminant, but that should not be needed for this simple example.\r
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\n" ); document.write( "\n" ); document.write( " $\"k%5E2-4%2A36=0\"$
\n" ); document.write( " $\"k%5E2=4%2A36\"$
\n" ); document.write( " $\"k=sqrt%284%2A36%29\"$
\n" ); document.write( " $\"k=0%2B-+2%2A6\"$ \n" ); document.write( "

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