Answer and explanation

Correct answer: B.

  1. Step 1: Let , so and .
  2. Step 2: .
  3. Step 3: Substitute back: .
Answer
.
Why not the others: : multiplies by an extra factor of from the inner derivative. : integrates each factor separately. : raises the power but does not allow for the factor inside.

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Find int6x (x 2+1) 2dx. | ESAT (Engineering and Science Admissions Test)