document.write( "Question 123922: For this type of excercise what is the procedure?\r
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document.write( "(3x+1)(5-10x)>0 \n" );
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Algebra.Com's Answer #90902 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! (3x+1)(5-10x)>0 \n" ); document.write( "15x+5-30x^2-10x>0 \n" ); document.write( "-30x^2+5x+5>0 \n" ); document.write( "30x^2-5x-5>0 \n" ); document.write( "(10x-5)(3x+1)>0 \n" ); document.write( "10x-5>0 \n" ); document.write( "10x>5 \n" ); document.write( "x>5/10 \n" ); document.write( "x>.5 answer. \n" ); document.write( "3x+1>0 \n" ); document.write( "3x>-1 \n" ); document.write( "x>-1/3 answer or x>-.33333. \n" ); document.write( "proof: \n" ); document.write( "let x=-.3 \n" ); document.write( "(3*-.3+1)(5-10*-.3)>0 \n" ); document.write( "(-.9+1)(5+3)>0 \n" ); document.write( ".1*8>0 \n" ); document.write( ".8>0 \n" ); document.write( " \n" ); document.write( " |