document.write( "Question 827345: for what values of x is the quantity (x-7)(x+5) negative? \n" ); document.write( "

Algebra.Com's Answer #498616 by MathLover1(20849) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "first find values for which $\"+%28x-7%29%28x%2B5%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( "if $\"x-7=0\"$ => $\"x=7\"$ \r
\n" ); document.write( "\n" ); document.write( "if $\"x%2B5=0\"$ => $\"x=-5\"$ \r
\n" ); document.write( "\n" ); document.write( "for values less than $\"7\"$ (like $\"6\"$ , $\"5\"$ ,...to $\"-infinity\"$ ), the quantity $\"%28x-7%29%28x%2B5%29\"$ is negative\r
\n" ); document.write( "\n" ); document.write( "for values less than $\"-5\"$ (like $\"-6\"$ , $\"-7\"$ ,...to $\"-infinity\"$ ), the quantity $\"%28x-7%29%28x%2B5%29\"$ is negative\r
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\n" ); document.write( "\n" ); document.write( " $\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C%28x-7%29%28x%2B5%29%29\"$ \r
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