plz simplefiy, no repeting answers. plz help!!

Answer:
45). √ 147a⁴ = √ 147 × √a⁴ = (7√3 )x²
46.) √18x = √9 × 2x = 3√2x
47.) √80n = √16 × 5x = √16 × √5x = 4√5x
48.) √200x² = √200 × √x² =
√ 100× 2 × x = (10√2)x
49.) √256x³ = √256 × √x³ = 16√x³
50.) -7 √ 75x⁴ = -7√75 × √x⁴
Hope this helps you