Question

√(−2 − √5) 2 + √(2 − √5) 2

Answer 1

Ответ:

Пошаговое объяснение:3

Answer 2

Ответ: Нифига непонел

Пошаговое объяснение:

Полностью покажи упражнение

Answer 3

It looks like you've provided an expression involving square roots. Let's break down the expression step by step:

1. √(−2 − √5)^2: First, let's deal with the expression inside the square root: -2 - √5. When squared, this becomes (−2 - √5)^2. To simplify this, you need to expand the square:

   (−2 - √5)^2 = (-2 - √5) * (-2 - √5) = 4 + 2√5 + 2√5 + 5 [Using FOIL method] = 9 + 4√5

   So, √(−2 − √5)^2 = √(9 + 4√5).

2. √(2 − √5)^2: Similarly, let's deal with the expression inside the second square root: 2 - √5. When squared, this becomes (2 - √5)^2. To simplify this:

   (2 - √5)^2 = (2 - √5) * (2 - √5) = 4 - 2√5 - 2√5 + 5 [Using FOIL method] = 9 - 4√5

   So, √(2 − √5)^2 = √(9 - 4√5).

Now, let's substitute these values back into the original expression:

√(−2 − √5)^2 + √(2 − √5)^2 = √(9 + 4√5) + √(9 - 4√5).

These two square root terms cannot be simplified further without additional context or calculations. So, the simplified form of the expression would be √(9 + 4√5) + √(9 - 4√5).