Question

explain in steps (3+2√2)^2 and find the value​

Answer 1

Answer:

17 + 12√2

Step-by-step explanation:

Use the identity (a+b)^2 = a^2 +b^2 + 2ab

So,

(3 + 2√2)^2 = (3)^2 + (2√2)^2 + 2(3)(2√2)

= 9 + 4(2) + 12√2

= 17 + 12√2