Question

Simplify the expression (3+root2)(2-root2)

Answer 1

Step-by-step explanation:

$(3 + \sqrt{2} )(2 - \sqrt{2} ) \\ = 3 \times 2 + 2 \sqrt{2} - 3 \sqrt{2} - \sqrt{2} \times \sqrt{2} \\ = 6 - \sqrt{2} - 2 \\ = 4 - \sqrt{2}$