document.write( "Question 726631: complete the square
\n" ); document.write( "2m^2-m-15=0\r
\n" ); document.write( "\n" ); document.write( "using the quadratic formula
\n" ); document.write( "2y^2-3y-6=0 \n" ); document.write( "
Algebra.Com's Answer #444702 by lwsshak3(11628)\"\" \"About 
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complete the square
\n" ); document.write( "2m^2-m-15=0
\n" ); document.write( "2(m^2-m/2+1/16)=15+1/8=120/8+1/8=121/8
\n" ); document.write( "2(m-1/4)^2=121/8
\n" ); document.write( "divide both sides by 2
\n" ); document.write( "(m-1/4)^2=121/16
\n" ); document.write( "take sqrt of both sides
\n" ); document.write( "m-1/4=±11/4
\n" ); document.write( "m=1/4±11/4
\n" ); document.write( "m=1/4+11/4=3
\n" ); document.write( "or
\n" ); document.write( "m=1/4-11/4=-10/4=-5/2=-2.5
\n" ); document.write( "..
\n" ); document.write( "using the quadratic formula
\n" ); document.write( "2y^2-3y-6=0
\n" ); document.write( "quadratic formula:
\n" ); document.write( "\"y=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
\n" ); document.write( "a=2, b=-3, c=-6
\n" ); document.write( "y={-(-3)±√(-3)^2-4*2*-6)}/(2*2)
\n" ); document.write( "=[3±√(9+48)]/4
\n" ); document.write( "=(3±√57)/4
\n" ); document.write( "y=(3+√57)/4
\n" ); document.write( "or
\n" ); document.write( "y=(3-√57)/4 \n" ); document.write( "
\n" );