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

समीकरण \(\left(x^2-9 x+11\right)^2-(x-4)(x-5)=3\) के सभी परिमेय मूलों का गुणनफल = __________

  1. A \(14\)
  2. B \(21\)
  3. C \(28\)
  4. D \(7\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(14\)

Step-by-step Solution

Detailed explanation

\(\begin{aligned} & \left(x^2-9 x+11\right)^2-(x-4)(x-5)=3 \\ & \left(x^2-9 x+11\right)^2-\left(x^2-9 x+20\right)=3 \end{aligned}\) Let \(x^2-9 x+11=t\)…
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