Respuesta :

Answer:

b^2=100

b=10 or b=-10

Step-by-step explanation:

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)