document.write( "Question 363215: Provide answers in interval notation .\r
\n" ); document.write( "\n" ); document.write( "s^2 - 2s - 35 < 0 \n" ); document.write( "
Algebra.Com's Answer #258960 by stanbon(75887)\"\" \"About 
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Provide answers in interval notation .
\n" ); document.write( "s^2 - 2s - 35 < 0
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\n" ); document.write( "Find the boundary value for \"s\":
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\n" ); document.write( "s^2 - 2s - 35 = 0
\n" ); document.write( "(x-7)(x+5) = 0
\n" ); document.write( "x = -5 or x = 7
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\n" ); document.write( "Plot x=-5 and x=7 on a number line.
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\n" ); document.write( "Check a value from each of the resulting intervals
\n" ); document.write( "in the INEQUALITY:
\n" ); document.write( "(x-7)(x+5) < 0
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\n" ); document.write( "Let x = -10 to get: -*- < 0 ; false
\n" ); document.write( "Let x = 0 to get: -*+ < 0 ; true, so solutions in (-5,7)
\n" ); document.write( "Let x = 10 to get: +*+ < 0 ; false
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\n" ); document.write( "Solution interval: (-5,7)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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