Question

A square - b square is equal 19 then what is the value of a

Answer 1

Answer:

±10

Step-by-step explanation:

Assumimg "b" is equal to 9 then

a² - b² = 19

a² - 9² = 19

a² - 81 = 19

a² = 19 + 81

a² = 100

a = √100

a = ±10