document.write( "Question 766456: fill in the blank make the expression a perfect square v^2 - 6v +? \n" ); document.write( "
Algebra.Com's Answer #466907 by lwsshak3(11628)\"\" \"About 
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fill in the blank make the expression a perfect square v^2 - 6v +?
\n" ); document.write( "take half the coefficient of the v term and square it.
\n" ); document.write( "add it to the expression then subtract the same amount to keep the expression in balance
\n" ); document.write( "(v^2 - 6v +9)-9=(v-3)^2-9
\n" ); document.write( "if the sign of the middle term is positive,
\n" ); document.write( "(v^2 + 6v +9)-9=(v+3)^2-9
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