document.write( "Question 698749: (x+2)(x+7)=6 \n" ); document.write( "
Algebra.Com's Answer #431009 by vidya p(12)\"\" \"About 
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Solution:)
\n" ); document.write( "( x + 2)( x + 7 ) = 6
\n" ); document.write( "=> x^2 + 2x + 7x + 14 = 6
\n" ); document.write( "=> x^2 + 11x + 14 - 6 = 0
\n" ); document.write( "=> x^2 + 11x + 8 = 0
\n" ); document.write( "use the formula :
\n" ); document.write( "Solution by SOLVE quadratic equation with variable:
\n" ); document.write( "=> x = [ -b +/- sqrt ( b^2 - 4ac ) ] / 2a
\n" ); document.write( "x = [ -11 +/- sqrt ( 11^2 - 4(1)(8))] / 2a
\n" ); document.write( "x = [ -11 +/1 sqrt ( 121 - 32 ) ] / 2
\n" ); document.write( "x = [ -11 + sqrt (89) ] / 2
\n" ); document.write( "x = [ -11 + 9.434 ] / 2 or x = [ -11 - 9.434 ] / 2
\n" ); document.write( "x = -1.566 / 2 x = [ -20.434 / 2 ]
\n" ); document.write( "x = - 0.783 x = - 10.217
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