Question

x^4–3x^3–x+3<0
solve it
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Answer 1

Step-by-step explanation:

${x}^{4} - 3 {x}^{3} - x + 3 < 0 \\ {x}^{3} (x - 3) - 1(x - 3) < 0 \\ ({x}^{3} - 1)(x - 3) < 0 \\ compare : \\ \: \: \: \: \: \: \: \: \: \: {x}^{3} - 1 < 0 \: \: || \: \: x - 3 < 0 \\ {x}^{3} < 1 \: \: || \: \: x < 3$

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