Integral of (ax+b)^2 - How to integrate it step by step using the substitution method!
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00:00 Substitution: u=ax+b
00:07 Differentiate in both sides
00:16 Substitute ax+b and dx
00:27 Rewrite expression
00:33 Integrate u^2
00:40 Rewrite expression
00:47 Undo substitution: u in terms of x
00:54 Add integration constant +C
01:01 Final answer!
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