document.write( "Question 186303: Ok...I'm terrible at the whole finding zeros...if you could give some tips that would be LOVED! Here's the question:\r
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document.write( "find all real zeroes of the polynomial function
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document.write( "f(x)=x^3 + 9x^2 - 4x - 36
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document.write( "and determine the multiplicity of each\r
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document.write( "Some help is greatly appreciated! Thanks!!! \n" );
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Algebra.Com's Answer #139658 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! find all real zeroes of the polynomial function \n" ); document.write( "f(x)= x^3 + 9x^2 - 4x - 36 \n" ); document.write( ": \n" ); document.write( "You can factor out by grouping and factoring out common terms \n" ); document.write( "x^2(x + 9) - 4(x + 9) \n" ); document.write( ": \n" ); document.write( "Factor out (x+9) and you have \n" ); document.write( "(x + 9)(x^2 - 4) \n" ); document.write( "; \n" ); document.write( "Note the (x^2 - 4) is the difference of squares and can be factored to: \n" ); document.write( "(x + 9) (x - 2)(x + 2) \n" ); document.write( ": \n" ); document.write( "the zeros \n" ); document.write( "x = -9 \n" ); document.write( "x = +2 \n" ); document.write( "x = -2 \n" ); document.write( ": \n" ); document.write( "\"determine the multiplicity of each\" I'm not sure what this means. \n" ); document.write( "Perhaps they want you to multiply the 3 factors and ensure you come up with \n" ); document.write( "the original equation. \n" ); document.write( " |