document.write( "Question 1177786: https://gyazo.com/911d576522641918b00f6e16b83a5956 \n" ); document.write( "
Algebra.Com's Answer #806882 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The response from the other tutor has nothing to do with the question that is asked. \n" ); document.write( "Her response is about PAIRS of equations which have no COMMON SOLUTION. The question is about single polynomial equations that have no REAL ROOTS. \n" ); document.write( "A polynomial equation of odd degree will always have at least one real solution, because the end behavior for large positive x is different than for large negative x. \n" ); document.write( "A polynomial equation of even degree does not need to have a real root, because the end behavior for large positive x and for large negative x is the same. If a polynomial equation of even degree has all coefficients positive, then every term will be positive and the equation will have no real solutions; and likewise if all terms have negative coefficients. \n" ); document.write( "Here are graphs of two polynomial equations with no real solutions: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |