Question

Simplify the expression by combining like terms. Write the terms from the highest to the lowest power of the variable.

-3b2 - 8b + 5b - 2 + 13b2 - 10 - 3b2 - 7b

Answer 1

Just add the likes together. So:\[-3b ^{2}+13b ^{2} - 3b ^{2}\] and you get:
\[7b^2\]
Now do:
\[-8b+ 5b - 7b \]
to get:
\[-10b\]
then:
\[-2-10\] to get 12
So your answer would be
\[7b^2-10b-12\]