document.write( "Question 897231: Solve the inequality. Write the solution set in interval notation.\r
\n" ); document.write( "\n" ); document.write( "x3 + 4x2 - 4x - 16 ≥ 0\r
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Algebra.Com's Answer #544030 by lwsshak3(11628)\"\" \"About 
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Solve the inequality. Write the solution set in interval notation.
\n" ); document.write( "x3 + 4x2 - 4x - 16 ≥ 0
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\n" ); document.write( "x^2(x+4)-4(x+4)≥0
\n" ); document.write( "(x+4)(x^2-4)≥0
\n" ); document.write( "(x+4)(x+2)(x-2)≥0
\n" ); document.write( "number line:
\n" ); document.write( "<...-...-4...+...-2...-...2...+...>
\n" ); document.write( "solution:
\n" ); document.write( "[-4,-2] U [2,∞)
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