how do i integrate this equation, ie an equation with a complex function- sqared number inside sqr root(adsbygoogle = window.adsbygoogle || []).push({});

integrate from 1-9

[tex]\int[/tex][tex]\sqrt{x^2 +4}[/tex]

what can i substitute?

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# Homework Help: How do I solve the integral int_1^9 sqrt(x^2+4)dx

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