Cos^2a+sin^2a. cos2b=cos^2b+sin^2b. cos2a

Strawberries cause two hours per pound kate buys 5 pounds he gets 20% off discount on the total cost how much does kate pay for the strawberries

Complete the synthetic division problem below.what is the quotient in polynomial form 2/16 -16

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a