Question

(3-√2)(5+√2)-(√2-1)²​

Answer 1

Ответ: 10.

Объяснение:

(3-√2)(5+√2)-(√2-1)²​=15+3√2-5√2-(√2)²- ((√2)²-2√2+1²)=

= (15-2√2-2)-(3-2√2)=10.