document.write( "Question 392830: using your calculator find the one real possitive solution to the equation x^3+5x^2-7=0 round oyur answer to the nearest hundreth \n" ); document.write( "
Algebra.Com's Answer #278859 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
Always helps to graph the polynomial so you know what you're looking at. We have the graph:\r
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\n" ); document.write( "\n" ); document.write( "\"graph%28300%2C+300%2C+-10%2C+10%2C+-10%2C+10%2C+x%5E3+%2B+5x%5E2+-+7%29\"\r
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\n" ); document.write( "\n" ); document.write( "The positive real solution appears to be approximately 1, so if you have a TI calculator, use nsolve:\r
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\n" ); document.write( "\n" ); document.write( "nsolve(x^3 + 5x^2 - 7 = 0, x, 1)\r
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\n" ); document.write( "\n" ); document.write( "Another way you could solve it using a calculator is via Newton's Method, which uses a recursive sequence to approximate the zero.
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