SOLUTION: Solve by using the quadratic formula. 5x^2 – x = 3 My answer that I got is 7 +- SQRT47/4 Is that correct?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve by using the quadratic formula. 5x^2 – x = 3 My answer that I got is 7 +- SQRT47/4 Is that correct?      Log On


   

Question 84351: Solve by using the quadratic formula. 5x^2 – x = 3
My answer that I got is 7 +- SQRT47/4
Is that correct?
Found 2 solutions by vertciel, josmiceli:
Answer by vertciel(183) About Me  (Show Source):
You can put this solution on YOUR website!
Hmm, I am not sure how you got that answer. Perhaps you can show us what you did?
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5x^2 - x = 3
5x^2 - x - 3 = 0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

x+=+%281+%2B-+sqrt%2861%29%29%2F%2810%29
x = 0.881
x = -0.681

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+5x%5E2+%96+x+=+3
5x%5E2+-+x+-+3+=+0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
a = 5
b = -1
c = -3
x+=+%28-%28-1%29+%2B-+sqrt%28+%28-1%29%5E2-4%2A5%2A%28-3%29+%29%29%2F%282%2A5%29+
x+=+%281+%2B-+sqrt%28+1+%2B+60+%29%29%2F10+
x+=+%281+%2B-+sqrt%2861%29%29%2F10+