SOLUTION: I'm supposed to solve the equation, {{{ (4/5)(x^2)=x, using the qudratic formula.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: I'm supposed to solve the equation, {{{ (4/5)(x^2)=x, using the qudratic formula.      Log On


   

Question 680885: I'm supposed to solve the equation, I%27m+supposed+to+solve+the+equation%2C+ (4/5)(x^2)=x, using the qudratic formula.
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
%284%2F5%29%28x%5E2%29+=+x
...
Multiply the entire equation by 5 to remove the fraction
4x%5E2+-+5x+=+0
These solutions can be seen:
x(4x-5)=0
x=0 and x = 5/4
...
Applying the quadratic formula
x=%28-%28-5%29%2B-sqrt%28-5%5E2-4%284%29%280%29%29%29%2F%282%2A4%29
x=%285%2B-sqrt%2825%29%29%2F8
x=%285%2B-5%29%2F8
...
x = %285%2B5%29%2F8+=+10%2F8+=+highlight_green%285%2F4%29
x = %285-5%29%2F8+=+0%2F8+=+highlight_green%280%29
.....................
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