what is 4(x + y) + 2(2x + 4y) simplified

4(x + y) + 2(2x + 4y)      use distributive property to get rid of parens

4x + 4y    + 4x + 8y        collect 'like' terms

4x +4x   + 4y + 8y          simplify

8x          + 12 y