Answer:D
Explanation:
Instead of a long explanation, I will just tell you a small tip I.e. A and D are same except for one sign on the term +26x. In order get the terms with x u need to multiply the terms regarding the final product as x.
Here it is 7 times 5x minus 3 times 3x,
which is 35x-9x=26x.
On D, the 26 is positive.