Match the given problem to the corresponding simplified radical.

√45 blank
√54 blank
√50x^5 blank
√50x^6 blank

Answer choices
5x^2√2x
3√6
3√5
5x^3√2

√45: 3√5

√54: 3√6
√50x^5: 5x^2√2x
√50x^6: 5x^3√2