3) f (x) = x 3 + 2x 2 - 8x
Mathematics, 23.10.2020 01:01 brainlord2848
1) x 2 (x + 2)(x - 5) = 0
2) (x 2 + 9)(x 2 + 6) = 0
3) f (x) = x 3 + 2x 2 - 8x
4) f (x) = x 3 + 2x 2 - 3x
5) f (x) = x 4 + 5x 3 + 4x 2 + 20x
6) f (x) = x 4 - 8x
State the number of complex roots and the possible number of real and imaginary roots for each equation. Then find all roots.
Answers: 2
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1) x 2 (x + 2)(x - 5) = 0
2) (x 2 + 9)(x 2 + 6) = 0
3) f (x) = x 3 + 2x 2 - 8x
3) f (x) = x 3 + 2x 2 - 8x
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