Question

Which equation results from taking the square root of both sides of (x - 9)2 = 81?
O x-9 = +9
O x + 9 = +9
O x + 3 = +9
O x-3 = +9

Answer 1

Answer:

x-9 = 9     x-9 = -9

Step-by-step explanation:

(x - 9)^2 = 81

Take the square root of both sides

sqrt((x - 9)^2) = ±sqrt(81)

x-9 = ±9

x-9 = 9     x-9 = -9

Answer 2

Answer:

the equation results from taking the square root of both sides of (x - 9)2 = 81 is x-9 = 9     x-9 = -9

Step-by-step explanation:

You basically have to take the square root of both sides to get your final answer.