Question 228369
There are a couple of ways to multiply the product of two binomials like this.  I recommend something called F O I L.  


(5x-1)(3x+7)

F=5x*3x= 15x^2
O=5x*7=35x
I=-1*3x=-3x
L=-1*7=-7


Add together:
15x^2 + 35x - 3x - 7
15x^2 + 32x - 7


Dr. Robert J. Rapalje, Retired
Seminole State College