y = (2x + 7)^5 (10 - x)^7

u = (2x +7)^5 v = (10 - x)^7

u' = 5(2x +7)^4 v' = 7(10 - x)^6

Formula: Uv' + Vu'

(2x+7)^5 [7( 10 - x )^6] + (10 - x)^7 [5( 2x + 7)^4]

(2x + 7)^4 (10 - x)^6 [ Here is where I stuck ] my lecturer told me to look for the lowest power and assign it to the first equation which is 4 and highest is 6 I assume I did that right but IDK how to solve the inside the bracket. I'm not looking for an answer but also looking for an explanation of how to solve.