Question:medium

The number of real roots of the equation \[ x^7+3x^5-13x^3-15x=0 \] is:

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For odd-degree equations containing only odd powers, factor out \(x\) first and then substitute \(x^2=t\).
Updated On: Jun 18, 2026
  • \(5\)
  • \(1\)
  • \(7\)
  • \(3\)
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The Correct Option is A

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