Could someone show me how to evaluate this: http://www.wolframalpha.com/input/?i=definite+integral+(x^2+%2B+2x+-+5)+dx%2C+x+%3D+1..4 please? (using right endpoints which I guess is the "default?")

Wolfram gives me the final answer but it does not show me the precise steps. I did the work myself but I am not at home so I can't scan my work and plus my internet doesn't work at home so I can't send it either way but I got 7 as the final answer but it's supposed to be 21 according to my teacher and wolfram. Please help!

Any help would be greatly appreciated!

Thanks in advance!