SOLUTION: Can anyone help me solve this equation?
160x=3x + the sqaure root of 50x+9000
160x-3x=the square root of 50x + 9000 is all the farther I've gotten. I think I square both sides
Algebra.Com
Question 124427: Can anyone help me solve this equation?
160x=3x + the sqaure root of 50x+9000
160x-3x=the square root of 50x + 9000 is all the farther I've gotten. I think I square both sides now to get rid of the square root symbol, but do I need to simplify it first and if so, how?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
160x=3x + the sqaure root of 50x+9000
:
160x-3x=the square root of 50x + 9000
which is:
157x = sqrt(50x+9000)
:
Square it:
24649x^2 = 50x + 9000
:
Arrange as a quadratic equation
24649x^2 - 50x - 9000 = 0
:
you have to use the quadratic formula to solve it:
In this equation a=24649; b=-50; c=-9000
:
:
:
Two solutions:
x = +.605
and
x = -.603
:
I checked these solutions on a Ti83 graphing calc. You can confirm it yourself
by substitution in the original equation
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