Respuesta :
Answer:
b₂ = - 10
Step-by-step explanation:
b² - 100 = 0
b² - 10² = 0
(b - 10)(b + 10) = 0
b₁ = 10
b₂ = - 10
a² - b² = (a - b)(a + b)
Answer:
b₂ = - 10
Step-by-step explanation:
b² - 100 = 0
b² - 10² = 0
(b - 10)(b + 10) = 0
b₁ = 10
b₂ = - 10
a² - b² = (a - b)(a + b)