(3x+7)(5x-2)

Answer 1

Try the FOIL method:

http://www.freemathhelp.com/using-foil.html

Post your answer for a check if you wish.

Answer 2

(3x+7)*(5x-2))=5x*3x+5x*7-2*3x-2*7=15x^2+35x-6x-14=15x^2+29x-14