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document.write( "Resolve in the set of integers 2x²-x-3 ≤ 0 \n" );
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Algebra.Com's Answer #627962 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! Resolve in the set of integers 2x²-x-3 ≤ 0 \n" ); document.write( "factor the polynomial \n" ); document.write( "(2x-3)(x+1) ≤ 0 \n" ); document.write( "there are two cases where the parabola crosses the x axis \n" ); document.write( "(2x-3) = 0 \n" ); document.write( "x = 3/2 \n" ); document.write( "**************************** \n" ); document.write( "(x+1) = 0 \n" ); document.write( "x = -1 \n" ); document.write( "**************************** \n" ); document.write( "we are looking for where the parabola is at or below the x axis \n" ); document.write( "here is its graph \n" ); document.write( " \n" ); document.write( "we only consider integers so 3/2 becomes 1 and our solution is \n" ); document.write( "**************************** \n" ); document.write( "-1 ≤ x ≤ 1 \n" ); document.write( " \n" ); document.write( " |