document.write( "Question 1120816: Log[2x^2+5x-2]=1 \n" ); document.write( "
Algebra.Com's Answer #736496 by ankor@dixie-net.com(22740)\"\" \"About 
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Log[2x^2+5x-2]=1
\n" ); document.write( "log(10) = 1
\n" ); document.write( "therefore
\n" ); document.write( "2x^2 + 5x -2 = 10
\n" ); document.write( "2x^2 + 5x - 2 - 10 = 0
\n" ); document.write( "2x^2 + 5x - 12 = 0
\n" ); document.write( "Factors to
\n" ); document.write( "(2x-3)(x+4) = 0
\n" ); document.write( "two solutions
\n" ); document.write( "2x = 3
\n" ); document.write( "x = 1.5
\n" ); document.write( "and
\n" ); document.write( "x = -4
\n" ); document.write( ":
\n" ); document.write( "Check both solutions in the original equation \n" ); document.write( "
\n" );