math
posted by nicole .
how would you simplify this expressions
1. z+3+z to the power of 2 + 3z to the power of 2 + 4z to the power of 2

Online "^" is used to indicate an exponent.
z + 3 + z^2 + 3z^2 + 4z^2
Combine like terms.
8z^2 + z + 3