Question

solve the following (2-✓2) (2+✓2)​

Answer 1

Answer:

mark as brilliant answer

Answer 2

Answer:

$(2 - \sqrt{2} )(2 + \sqrt{2} ) \\ = 2(2 + \sqrt{2} ) - \sqrt{2} (2 + \sqrt{2} ) \\ = 4 + 2 \sqrt{2} - 2 \sqrt{2} - 2 \\ = 4 - 2 \\ = 2$