anonymous
  • anonymous
1. solve the following inequality. write your solution in interval notation. (x+3)/(x-3)<0 2. find all the zeros of the following polynomial. write the polynomial in factor form. f(x)=x^4+3x^2-40
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
first one has zeros at \(-3\) and \(3\) it will be negative between them, positive outside you want where it is negative, your answer is \(-3
anonymous
  • anonymous
for the scone one, factor as \((x^2-5)(x^2+8)\) and then solve
tkhunny
  • tkhunny
Hmmm... The first one does not have a zero at x = 3, but that may make no difference for the eventual solution.

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anonymous
  • anonymous
yes that is true, i should have said "the factors have a zero of -3 and 3" which would have been a better way to say it (since the first thing i said was wrong)

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