document.write( "Question 1029538: The function f(x)=-2x(x-1)(x-2)(x+2)
\n" ); document.write( "A)has 4 zeros
\n" ); document.write( "B)has a maximum
\n" ); document.write( "C)as x infinit as f(x) -infinity
\n" ); document.write( "D)all of the above
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Algebra.Com's Answer #644682 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
We can see by inspection that
\n" ); document.write( "f(x)=-2x(x-1)(x-2)(x+2)
\n" ); document.write( "has four zeroes, since setting it equal to zero gives four solutions.
\n" ); document.write( "Look at the leading term (when you multiply it out)...it is -2x^4...
\n" ); document.write( "When x goes to infinity, f(x) goes to negative infinity...
\n" ); document.write( "So we have choices A and C...turns out it has a maximum too, so
\n" ); document.write( "Choice D) all of the above.
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