document.write( "Question 71669: I have a question that I can't figure out.
\n" ); document.write( "It's 4y to the sixth minus 14y to the fifth minus 144y to the third equals 0. I am supposed to find all six degrees of x. How do I do this. So my teacher say there should be six answers.
\n" ); document.write( "Thank you for your help.
\n" ); document.write( "Amy \n" ); document.write( "

Algebra.Com's Answer #51244 by stanbon(75887) $\"\"$ $\"About$

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4y to the sixth minus 14y to the fifth minus 144y to the third equals 0
\n" ); document.write( "4y^6-14y^5-144y^3=0
\n" ); document.write( "Factor out 2y^3 to get:
\n" ); document.write( "2y^3(2y^3-7y^2-72)=0
\n" ); document.write( "y=0 with multiplicity 3
\n" ); document.write( "I graphed the cubic and found a root at approximately y=-4.9620881
\n" ); document.write( "The other two zeroes may be complex numbers:not sure.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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