Question

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What is the local max(s) and min(s) of the functions
Y=x^3+2x^2-5

Y=x^5-4x^4+3x^3+2x^2-x+1?

Answer 1

http://www.wolframalpha.com/input/?i=local+maximum+calculator&f1=Y%3Dx%5E3%2B2x%5E2-5&f=LocalMaximizeCalculator.curvefunction_Y%3Dx%5E3%2B2x%5E2-5&a=*FVarOpt.1-_**-.***LocalMaximizeCalculator.domain---.*--

Answer 2

http://www.wolframalpha.com/input/?i=local+minima+calculator&f1=Y%3Dx%5E3%2B2x%5E2-5&f=LocalMinimizeCalculator.curvefunction_Y%3Dx%5E3%2B2x%5E2-5&a=*FVarOpt.1-_**-.***LocalMinimizeCalculator.domain---.*--

Answer 3

http://www.wolframalpha.com/input/?i=local+maxima+calculator&f1=Y%3Dx%5E5-4x%5E4%2B3x%5E3%2B2x%5E2-x%2B1&f=LocalMaximizeCalculator.curvefunction_Y%3Dx%5E5-4x%5E4%2B3x%5E3%2B2x%5E2-x%2B1&a=*FVarOpt.1-_**-.***LocalMaximizeCalculator.domain---.*--

Answer 4

those should help, i didn't do all of them but you can