Question

Y = (x + 4)2
y = x2 + 16

Answer 1

Distribute the 2
Y=2X+8
Plug in the Y equation into the y in the other equation
2X+8=2X+16
Both 2Xs cancel out one another
Therefore you are left with: 8=16
There is no possible solution to the set of equations.
Hope this helps!!!