exam
Maths Puzzle
Numerical Ability
Subtract and put in simplest form:
2 3
----- - -------
5w+10 2w-4
This problem has completely lost me, needing some help on this one, thank you for the help you offer.
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for f(x)= 2x^5+3x^4-6x^2+1, what does descartes rule of signs tell you about
a) the number of positive real zeros?
b) the number of negitive real zeros?