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OpenStudy (anonymous):
find the second derivatives of y = x^3(2x + 4)^2 a. 2x + 4 b. x^3(2x+80) c. x^2(80x +192) d. x^2(20x+60)
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OpenStudy (anonymous):
a?
OpenStudy (anonymous):
sometime my prof answer is E but this one i feel there a answer
OpenStudy (anonymous):
c or d
OpenStudy (anonymous):
wait im working it out.
OpenStudy (anonymous):
hmm i worked it out, i got 80x^3 +192x^2 +96x which doesnt fit anything above. i thought i was wrong, so i double checked on the calc. http://www.wolframalpha.com/input/?i=+second+derivative+x^3%282x+%2B+4%29^2 it gave the same answer also...
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OpenStudy (anonymous):
thanks
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