Respuesta :
Answer:
51 - 14√2
Step-by-step explanation:
Identity used :
- (a - b)(a - b) = (a - b)² = a² - 2ab + b²
Solving :
- (7 - √2)(7 - √2)
- (7 - √2)²
- (7)² - 2(7)(√2) + (√2)²
- 49 - 14√2 + 2
- 51 - 14√2
Answer:
51 - 14√2
Step-by-step explanation:
Identity used :
Solving :