Question

Simplify: m(2+n-m)+3(3n+m^2-1)

Answer 1

mn+2m^2+9n+2m-3

Explanation:

Answer 2

Explanation:

m(2+n-m)+3(3n+m^2-1)

= 2m + mn - m^2 + 9n + 3m^2 - 1

= 2m^2 + 2m + 9n + mn - 1