document.write( "Question 1083131: Inverse of x²+5x+9 \n" ); document.write( "
Algebra.Com's Answer #697126 by Boreal(15235)\"\" \"About 
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y=x^2+5x+9
\n" ); document.write( "x=y^2+5y+9
\n" ); document.write( "y^2+5y=x-9
\n" ); document.write( "y^2+5y+6.25=x-9+6.25, completing the square
\n" ); document.write( "(y+2.5)^2=x-2.75
\n" ); document.write( "y=-2.5+/- sqrt(x-2.75)
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