$(2x + 5y)^2 = 4x^2 + 20xy + 25y^2$

$(7a + 2b)^2 = 49a^2 + 28ab + 4b^2$

$(3m + 2n)^2 = 9m^2 + 12mn + 4n^2$

$(2x - 3)^2 = 4x^2 - 12x + 9$

$(x + 5)^2 = x^2 + 10x + 25$

$(3a + 5b)^2 = 9a^2 + 30ab + 25b^2$

$(4m + 5n)^2 = 16m^2 + 40mn + 25n^2$

$(3x + 2)^2 = 9x^2 + 12x + 4$