Expand $(2x + 3y + 5)^2$.

(N/A) To expand $(2x + 3y + 5)^2$,we use the algebraic identity: $(a + b + c)^2 = a^2 + b^2 + c^2 + 2ab + 2bc + 2ca$.
Here,$a = 2x$,$b = 3y$,and $c = 5$.
Substituting these values into the identity:
$(2x + 3y + 5)^2 = (2x)^2 + (3y)^2 + (5)^2 + 2(2x)(3y) + 2(3y)(5) + 2(5)(2x)$.
Calculating each term:
$(2x)^2 = 4x^2$
$(3y)^2 = 9y^2$
$(5)^2 = 25$
$2(2x)(3y) = 12xy$
$2(3y)(5) = 30y$
$2(5)(2x) = 20x$
Combining these results,we get: $4x^2 + 9y^2 + 25 + 12xy + 30y + 20x$.