Question

(10-10.raizde2)^2-100

Answer 1

(10 - 10√2)² - 100

Desenvolvendo:

[(10)² - 2.(10).(10√2) + (10√2)²] - 100
100 - 200√2 + (100 . 2) - 100
100 - 200√2 + 200 - 100
100 - 100 + 200 - 200√2
200 - 200√2 

RESPOSTA:

200 - 200√2 , ou ainda, 200.(1 - √2)