document.write( "Question 124614This question is from textbook
\n" ); document.write( ": Would someone be able to help me with this problem?
\n" ); document.write( "The solution to the inequality x^3-4x^2-x+4(\n" ); document.write( "My answer options are:
\n" ); document.write( "a.[1,4]
\n" ); document.write( "b.(-infinity,-1]U[1,4]
\n" ); document.write( "c.[4,infinity)
\n" ); document.write( "d.[-1,1]U[4,infinity)
\n" ); document.write( "I thought the answer was a.,is this correct? Please help as soon as possible!!!
\n" ); document.write( "

Algebra.Com's Answer #91350 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The solution to the inequality x^3-4x^2-x+4(\n" ); document.write( "Factor to get:
\n" ); document.write( "(x+1)(x-1)(x-4)<=0
\n" ); document.write( "The zeroes are x = -1, x=1, x=4
\n" ); document.write( "Draw a number line; Plot those x-values.
\n" ); document.write( "Test a point in each of the resulting intervals to see where the solutions are.
\n" ); document.write( "-----------------------
\n" ); document.write( "If x=-2 you get: (-)(-)(-) < 0 ; true, solutions in (-inf,-1}
\n" ); document.write( "Since only \"b\" contains that information, check x=2
\n" ); document.write( "If x = 2 you get: (+)(+)(-) <0; true, solutions in [1,4]
\n" ); document.write( "-----------------
\n" ); document.write( "Ans: \"b\"
\n" ); document.write( "--------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "------------------------
\n" ); document.write( "My answer options are:
\n" ); document.write( "a.[1,4]
\n" ); document.write( "b.(-infinity,-1]U[1,4]
\n" ); document.write( "c.[4,infinity)
\n" ); document.write( "d.[-1,1]U[4,infinity)
\n" ); document.write( "I thought the answer was a.,is this correct?
\n" ); document.write( "
\n" ); document.write( "
\n" );