Question

4root2 - 2root 8
subtraction of irrational numbers ​

Answer 1

Step-by-step explanation:

$4 \sqrt{2 - 2 \sqrt{8} } \\ \\ = 4 \times \sqrt{2 - 2 \times \sqrt{2 \times \sqrt{2 \times \sqrt{2} } } } \\ = 4 \sqrt{2 - 4 \sqrt{2} } \\ = 0$