document.write( "Question 249088: hello \r
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document.write( "I do not have an exact idea on how to solve this problem below\r
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document.write( "(x+2)(x-14)(x+1)>0\r
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document.write( "There will either be a solution set for {x| }
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document.write( "or it will be all real numbers or finally, no solution???\r
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document.write( "I got as far as multiplying them threw the distributive process. Dont know if this was necessary or not..???\r
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document.write( "x3rd power -11x2nd power-40x-28 > 0\r
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Algebra.Com's Answer #181486 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! I do not have an exact idea on how to solve this problem below \n" ); document.write( "(x+2)(x-14)(x+1)>0 \n" ); document.write( "----------------- \n" ); document.write( "1st: Since the left side cannot be zero \n" ); document.write( "x cannot be -2,14,or -1 \n" ); document.write( "--------------------------------- \n" ); document.write( "2nd: Draw a number line and mark -2,-1,14 on it. \n" ); document.write( "--------------------------------- \n" ); document.write( "3rd: That breaks the line up into 4 intervals. \n" ); document.write( "Choose a check point in each interval to see where \n" ); document.write( "the solutions for the INEQUALITY are. \n" ); document.write( "Test each check point in (x+2)(x-14)(x+1)>0 \n" ); document.write( "Note: You only need to check the sign of the answer because you \n" ); document.write( "are comparing the value to zero. \n" ); document.write( "--------------------------------------- \n" ); document.write( "Checking: \n" ); document.write( "If x = -3, you get -*-*- > 0 ; false, so no solutions in (-inf,-2) \n" ); document.write( "-------- \n" ); document.write( "If x = -3/2, you get +*-*- > 0 ; true, so solutions in (-2,-1) \n" ); document.write( "-------- \n" ); document.write( "If x = 13, you get +*-*+ > 0 ; false, so no solutions in (-1,14) \n" ); document.write( "-------- \n" ); document.write( "If x = 15, you get +*+*+ > 0 ; true, so solutions in (14,+inf) \n" ); document.write( "-------------------- \n" ); document.write( "Final Answer: (-2,-1)U(14,+inf) \n" ); document.write( "====================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |