Why do people say if you answer a question that they thank is really hard they say they will give you a brainiest?

i don’t know

Step-by-step explanation:

i think they give points if you answer a question and i think it gives you lots of points so people will answer the question faster

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )