Integration by parts or substitution?

[shy trellis]

The mark scheme says to use integration by parts? But this question looks very similar to the example in the textbook for substation? So idk which method is appropriate where and when

[stark palm]

you can use either

but i would go for a sub here

[shy trellis]

If you don’t mind, could you send me working out on how you do it for this one please? I tried but couldn’t get it and the mark scheme only shows the method for parts

[stark palm]

sure

if you dont like having to deal with square roots, you could also use the sub

u^2 = x+2

@shy trellis

[shy trellis]

thank you very much, I’ll sub in the values and see if it works