Simplify the following expression completely, where x ≥ 0. x square root of 5xy4+ square root of 405x3y4- square root of 80x3y4 xy2 square root of 5x+xy2 square root of 405x-xy2 square root of 80x 6xy2 square root of 5x -3xy2 square root of 5x+xy2 square root of 405x 6xy square root of 5xy2