What's the sum or difference 1. 4x^10-9x^10 2. 3y^5-10y^5 @kewlgeek555

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Find the difference (8ab+a+2) - (3ab+6)