SOLUTION: Give exact and approximate solutions to 3 decimal places. (x - 4)^2 = 81 The exact solutions are: __________ The approximate solutions are: ___________

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Give exact and approximate solutions to 3 decimal places. (x - 4)^2 = 81 The exact solutions are: __________ The approximate solutions are: ___________       Log On


   

Question 132082: Give exact and approximate solutions to 3 decimal places.
(x - 4)^2 = 81
The exact solutions are: __________
The approximate solutions are: ____________

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
(x - 4)^2 = 81
Square root each side:

x-4= +9
x=13

x-4=-9
x-4+4=-9+4
x=-5

R^2