document.write( "Question 52872: I am having trouble with solving inequalities. Can you please help?\r
\n" ); document.write( "\n" ); document.write( "Solve the inequality: x^2-8x≤4x-36\r
\n" ); document.write( "\n" ); document.write( "If you could help I will greatly apprecaite it.\r
\n" ); document.write( "\n" ); document.write( "Thanks in advance.
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Algebra.Com's Answer #35263 by funmath(2933)\"\" \"About 
You can put this solution on YOUR website!
Set the problem <=0
\n" ); document.write( "\"x%5E2-8x%3C=4x-36\"
\n" ); document.write( "\"x%5E2-8x-4x%2B36%3C=4x-4x-36%2B36\"
\n" ); document.write( "\"x%5E2-12x%2B36%3C=0\"
\n" ); document.write( "Solve as if it's an equality, factor and solve for x:
\n" ); document.write( "\"%28x-6%29%28x-6%29=0\"
\n" ); document.write( "x-6+6=0+6
\n" ); document.write( "x=6
\n" ); document.write( "Since this is an inequality, we have to check values bigger and smaller than 6 to see what kind of inequality sign that we need.
\n" ); document.write( "When x=0,
\n" ); document.write( "(0-6)(0-6)=36, which is not less than 0.
\n" ); document.write( "When x=7
\n" ); document.write( "(7-6)(7-6)=1*1=1, which is also not less than 0.
\n" ); document.write( "Therefore, the only value for which
\n" ); document.write( "\"x%5E2-8x%3C=4x-36\"
\n" ); document.write( " is x=6
\n" ); document.write( "Interval notation:[6]
\n" ); document.write( "Set notation:{6}
\n" ); document.write( "Set Builder Notation:{x|x=6}
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