pasagot po nito plsss

Answer:
1. 1/4x²
2. x:2
3. 2+x/ 4-x² or 2+x ÷ 4-x²
4. 4-x²/ 2x or 4-x²÷ 2x
5. 2-x/x²-4(x+4) or
2-x
_______
x²-4(x+4)
Pa brainliest!