What is the simplified form of 3a^2+6a+2b^2. It would be greatly appreciated if anyone could solve this

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

Aline passes through 3,7 and 6,9 what equation represents the line