document.write( "Question 861010: Calculate the following integral clearly label your substitution
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\n" ); document.write( "Integral cos(3x^2+4x)(6x+4)dx \n" ); document.write( "

Algebra.Com's Answer #519015 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"u=3x%5E2%2B4x\"$
\n" ); document.write( " $\"du=%286x%2B4%29dx\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"int%28cos%283x%5E2%2B4x%29%2A%286x%2B4%29%2Cdx%29=int%28cos%28u%29%2Cdu%29\"$
\n" ); document.write( " $\"int%28cos%283x%5E2%2B4x%29%2A%286x%2B4%29%2Cdx%29=sin%28u%29%2BC\"$
\n" ); document.write( " $\"int%28cos%283x%5E2%2B4x%29%2A%286x%2B4%29%2Cdx%29=sin%283x%5E2%2B4x%29%2BC\"$ \n" ); document.write( "

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