Monday, September 21, 2015

Cubic

Problem:




h(k)=3k3k+3

Solution:

In general, a cubic equation is hard to solve.
There is a general solution, but it is complicated an a lot of work to do, it is much easier to do with a calculator.

For the first question we can rewrite it into

3k3k+3=75

3k3k+78=0

Then we can put it into a solver and get it solved.

http://www.1728.org/cubic.htm


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