To evaluate ∫1x2+6x+10dx\int \frac{1}{x^2+6x+10} dx∫x2+6x+101dx, what is the first logical step?
Complete the square in the denominator
Use partial fractions
Integrate by parts
Use u-substitution u=x2+6x+10u = x^2+6x+10u=x2+6x+10