document.write( "Question 649719: Please help me with this question: Find all real zeros of the polynomial function: f(x)=-6x^4+54x^2 \n" ); document.write( "
Algebra.Com's Answer #407154 by lwsshak3(11628)\"\" \"About 
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Find all real zeros of the polynomial function:
\n" ); document.write( "f(x)=-6x^4+54x^2
\n" ); document.write( "set f(x)=0
\n" ); document.write( "-6x^4+54x^2=0
\n" ); document.write( "6x^4-54x^2=0
\n" ); document.write( "x^2(6x^2-54)=0
\n" ); document.write( "x^2=0
\n" ); document.write( "x=0
\n" ); document.write( "or
\n" ); document.write( "6x^2-54=0
\n" ); document.write( "6x^2=54
\n" ); document.write( "x^2=54/6=0
\n" ); document.write( "x=±√9=±3
\n" ); document.write( "zeros are: 0, 0, -3, 3 \n" ); document.write( "
\n" );