SOLUTION: Give exact and approximate solutions to three decimal places. (x-7)^2=45 (what are the exact solutions) and (what are the approximate solutions) Problem 2 same as above I need

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Give exact and approximate solutions to three decimal places. (x-7)^2=45 (what are the exact solutions) and (what are the approximate solutions) Problem 2 same as above I need       Log On


   

Question 366614: Give exact and approximate solutions to three decimal places.
(x-7)^2=45 (what are the exact solutions) and (what are the approximate solutions)
Problem 2 same as above I need help with the exact and approximate solutions to
x^2+16x+64=49
Solve by completing the square:
x^2 +1/2x=1
Solve for X
x^2 + 14x + 4=0
a) solve 5x+x(x-3)=0 What are the solutions?
b)Find the x intercepts of
f(x)= 5x+x (x-3)
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
For exact rational numbers are required. For approximate decimals can be used.
(x-7)^2=45
x-7=+-sqrt(9*5)
x=7+-3sqrt(5)
x=7+3sqrt(5), x=7-3sqrt(5) [exact]
.
x=13.708, x=.292 [approximate]
.
Ed