document.write( "Question 1151452: If y=x^2-x-12, find the range of the value of x for which y =>0. \n" ); document.write( "

Algebra.Com's Answer #773194 by MathLover1(20849) $\"\"$ $\"About$

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If $\"y=x%5E2-x-12\"$ , find the range of the value of $\"x+\"$ for which $\"y%3E=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%5E2-x-12%3E=0\"$ ..........solve for $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%5E2-x-12%3E=0\"$ .......factor\r
\n" ); document.write( "\n" ); document.write( " $\"x%5E2%2B3x-4x-12%3E=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E2%2B3x%29-%284x-12%29%3E=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%28x%2B3%29-4%28x-3%29%3E=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28x+-+4%29%28x+%2B+3%29%3E=0\"$ \r
\n" ); document.write( "\n" ); document.write( "solutions:\r
\n" ); document.write( "\n" ); document.write( " $\"%28x+-+4%29%3E=0\"$ => $\"x%3E=4\"$
\n" ); document.write( " $\"%28x+%2B+3%29%3E=0\"$ => $\"x%3C=-3\"$ \r
\n" ); document.write( "\n" ); document.write( "interval:\r
\n" ); document.write( "\n" ); document.write( "( $\"-infinity\"$ , $\"-3\"$ ] U [ $\"4\"$ , $\"infinity\"$ )\r
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