SOLUTION: How to find the quadratic formula with this root: square root of 5 over 3

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Question 849611: How to find the quadratic formula with this root: square root of 5 over 3
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

quadratic formula

y = ax^2 + bx + c = 0

x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

 x+=+sqrt%285%29%2F3  a root

x+=+%280+%2B-+sqrt%28+0-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ 

      2a = 3,  -4(3/2)c = 5, -6c = 5, c = -5/6

  y+=+%283%2F2%29x%5E2+-+5%2F6

  (3/2)= a.  It is the coefficient of x^2

    0 =  b

  -5/6 = c

y = ax^2 + bx + c 

  y+=+%283%2F2%29x%5E2+-+5%2F6