Question

Solve the following:

(2+√3)(2-√3)

(3+√3)(3+√3)

(5-√2)(5-√2​

Answer 1

Answer:

1) 1

2) 12+6√3

3) 25-10√2+4

Answer 2

Step-by-step explanation:

1 question

2² - (√3)² = 4 - 3 = 1

2 question

3×3+3×√3+√3×3+√3×√3

9+3√3+3√3+3

3 question

5×5-5×√2-√2×5-√2×√2

25-5√2-5√2-2