Question

(5√2-√18)×√2
(3-√2)²
помогите

Answer 1

(5√2-√18)·√2=5√2·√2-√18·√2=5·2-√36=10-6=4
2)(3-√2)²=3²-6√2+√2²=9-6√2+2=11-6√2