Expand and reduce (2+√3)^2

7 + 4

Step-by-step explanation:

note that × = a

Given

(2 + )² = (2 + )(2 + )

Each term in the second factor is multiplied by each term in the first factor, that is

2(2 + ) + (2 + ) ← distribute both parenthesis

= 4 + 2 + 2 + 3 ← collect like terms

= 7 + 4

its the fourth option