PreCalculus 3: Graphing Polynomial & Rational Fcts (15 of 29) 4th Order Polynomials - General Rules

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In this video I will explain the general rules to the shape of the graph and the number of roots to Fourth order polynomials.

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Hi Michel, of course it also can happen that a 4th order polynomial does not have any roots at all, e.g. f(x)=x^4+1 or when the w-shaped curve is all above the x-axis.
Greetings from Germany.
PS: I really admire your output rate - 3 videos a day. There must be many clones of you :)

Mathehoch