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JEE Mains · Maths · STD 11 - 4.2 Quadratic equations and inequations

समीकरण \(x^4-3 x^3-2 x^2+3 x+1=10\) के सभी मूलों के घनों का योगफल है

  1. A \(34\)
  2. B \(36\)
  3. C \(44\)
  4. D \(46\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(36\)

Step-by-step Solution

Detailed explanation

\(x^{4}-3 x^{3}-2 x^{2}+3 x+1=10\) \(x=0\) is not the root of this equation so divide it by \(x^{2}\) \(x^{2}-3 x-2+\frac{3}{x}+\frac{1}{x^{2}}=0\) \(x^{2}+\frac{1}{x^{2}}-2+2-3\left(x-\frac{1}{x}\right)-2=0\) \(\left(x-\frac{1}{x}\right)^{2}-3\left(x-\frac{1}{x}\right)=0\)…
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