How Do You Integrate Sqrt(2x + 7) dx Using Substitution?

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SUMMARY

The integral of Sqrt(2x + 7) dx can be solved using the substitution method. By letting u = 2x + 7, the differential du becomes 2dx, allowing for the integral to be rewritten as (1/2) ∫ u^(1/2) du. This results in the final solution of (1/3)(2x + 7)^(3/2) + C. Verification through differentiation confirms the application of the chain rule.

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Homework Statement



∫ Sqrt(2x + 7) dx

Homework Equations





The Attempt at a Solution



I know that part of it is
(2x+7) ^ 3/2 , but is there a chain rule to it?
3
 
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It's the chain rule in a way. Put u=2x+7, du=2dx. When you get the answer check it by differentiation and you'll see the chain rule.
 

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