SOLUTION: y = 5x squared - 8x + 2

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: y = 5x squared - 8x + 2      Log On


   



Question 693730: y = 5x squared - 8x + 2
Answer by Ave(106) About Me  (Show Source):
You can put this solution on YOUR website!
5x%5E2-8x%2B2
if it can't be done with "reverse foil" you can always use the Quadratic Formula
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
a=5
b=-8
c=2
x+=+%28-%28-8%29+%2B-+sqrt%28+-8%5E2-4%2A5%2A2+%29%29%2F%282%2A5%29+
Multiply
x+=+%288+%2B-+sqrt%2864-40%29%29%2F10+
Subtract and simplfy
x+=+%288+%2B-+2sqrt%286%29%29%2F10+ x+=+%284+%2B-+sqrt%286%29%29%2F5+