document.write( "Question 1029538: The function f(x)=-2x(x-1)(x-2)(x+2)
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document.write( "A)has 4 zeros
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document.write( "B)has a maximum
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document.write( "C)as x infinit as f(x) -infinity
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document.write( "D)all of the above \n" );
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Algebra.Com's Answer #644682 by fractalier(6550)![]() ![]() 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. \n" ); document.write( " |