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# Find all the zeros pf the equation below?

Find all the zeros of the equations below.

4) x^4-8x^2-9 =0

5) x^3-2x^2+4x-3=0

6) 5x^3-5x=0

### 1 Answer

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- 9 years agoFavorite Answer
4) 3 and -3

(x+3)(x-3)(x²+1)=0

5) (x-1)(x²-x+3)=0

6) 5x(x²-1)=0

x=0

x=±1

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