Question

45 is added to the square root of a number and the result is 54 what is the number.​

Answer 1

x = 81

Explanation:

The first step is to write the equation

45 + sqrt(x) = 54

Then solve

Subtract 45 from each side

sqrt(x) = 54-45

sqrt(x) = 9

Square each side

(sqrt(x))^2 = 9^2

x = 81