Question

(√5+2√2)(√5-2√2) хеелп :3

Answer 1

(√5+2√2)(√5-2√2) =5-8=-3

Answer 2

To simplify the expression (√5+2√2)(√5-2√2), we can use the difference of squares formula, which states that (a + b)(a - b) = a^2 - b^2. In this case, let's assign a = √5 and b = 2√2.

Using the difference of squares formula, we have:

(√5 + 2√2)(√5 - 2√2) = (√5)^2 - (2√2)^2

Simplifying further:

= 5 - 4(2^2) = 5 - 4(4) = 5 - 16 = -11

Therefore, the simplified expression (√5+2√2)(√5-2√2) is -11.