Question

`(x + y) ^(2)`
​

Answer 1

Explanation:

This is an example of "the square of a binomial." There is a formula for such cases;

(a + b)^2 = a^2 + 2ab + b^2 (worth memorizing)

Thus, our (x + y)^2 = x^2 + 2xy + y^2

Answer 2

Explanation:

(x + y) 2

x2 + 2xy + y2