To do this problem, we really just need to add F of X with the G of X equations, because F + g of X means F of X + g of X. So F of X is X ^2 -, 11 and G of X is 16 -, X So we're going to combine our like terms and we're going to write it in descending order by the power, the exponent on the variable. So X ^2 -, X + 5. Now if we had a follow up to this problem saying what was F + g of two, we could stick 2 immediately into that equation. So 2 ^2 -, 2 + 5.