Which products result in a perfect square trinomial? Select three options. -x+9-x-9 xy+xxy+x 2x-3-3+2x 16-x2x2-16 4y2+2525+4y2

(-x+9)(-x-9): perfectsquare(\times) (xy+x)(xy+x): perfectsquare(\checkmark) (2x-3)(-3+2x): perfectsquare(\checkmark) (16-x^{2})(x^{2}-16): perfectsquare(\times) (4y^{2}+25)(25+4y^{2}): perfectsquare(\checkmark)