# algebra

Find all roots of f(x)=x³-7x²+20x+14 in ℤ and ℚ

1. 👍 0
2. 👎 0
3. 👁 140
1. What do you mean by "in Z and Q?"
Do you want the values of x for which f(x) = 0?
The only real root of f(x) = 0 is
-0.5748455821794285

There are two complex roots
3.7874227910897145 +/- 3.163826025580645 i

I used an online cubic solver.

1. 👍 0
2. 👎 0

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