Question

(√5+1)^2=(√5)^2+2*√5*1=5+...+1

Answer 1

Ответ:

(√5-1)^2(2√5+1)^2=5-2√5+1-20-4√5-1=-6√5-15

Пошаговое объяснение:

Answer 2

It looks like you made a mistake in your calculations. Let's go through the steps again to find the correct result for (√5 + 1)^2:

Step 1: Start with the expression (√5 + 1)^2.

Step 2: Square (√5 + 1): (√5 + 1)^2 = (√5 + 1) * (√5 + 1) = (√5 * √5) + (√5 * 1) + (1 * √5) + (1 * 1) = 5 + √5 + √5 + 1

Step 3: Combine like terms: (√5 + 1)^2 = 5 + 2√5 + 1

So, the correct result for (√5 + 1)^2 is 5 + 2√5 + 1, not 5 + ... + 1.