Question 320345
(5x-4)^2 = 9


Take the square root of each side of the equation to get:


5x-4 = 3


Add 4 to both sides of the equation to get:


5x = 7


Divide both sides of the equation by 5 to get:


x = 7/5


Confirm by substituting x = 7/5 into both sides of the equation to get:


(5*(7/5) - 4)^2 = 9


5 * 7/5 = 7


(7-4)^2 = 9 becomes:


3^2 = 9 which becomes:


9 = 9 which  is true confirming that the value of x = 7/5 is good.