SOLUTION: (5a-2)^2-a=0

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Question 64546: (5a-2)^2-a=0
Answer by checkley71(8403) About Me  (Show Source):
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(5A-2)^2-A=0
25A^2-20A+4-A=0
25A^2-21A+4=0
USING THE QUADRATIC EQUATION WE GET
X=(-B+-SQRT[B^2-4AC])/2A
X=(21+-SQRT[441-4*25*4])/2*25
X=(21+-SQRT[441-400])/50
X=(21+-SQRT41])/50
X=(21+-6.4)/50
X=(21+6.4)/50
X=27.4/50
X=.548 SOLUTION
X=(21-6.4)/50
X=14.6/50
X=.292 SOLUTION