SOLUTION: Use the quadratic formula to solve the equation - 3x^2-40x=59

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Use the quadratic formula to solve the equation - 3x^2-40x=59      Log On


   



Question 113602: Use the quadratic formula to solve the equation
-
3x^2-40x=59

Found 2 solutions by checkley71, stanbon:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
3X^2-40X-59=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
X=(40+-SQRT[-40^2-4*3*-59])/2*3
X=(40+-SQRT[1600+708])/6
X=(40+-SQRT2308)/6
X=(40+-48.04)/6
X=(40+48.04)/6
X=88.04/6
X=14.67 ANSWER.
X=(40-48.04)/6
X=-8.04/6
X=-1.34 ANSWER.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
3x^2-40x=59
3x^2 - 40x -59 = 0
x = [40 +- sqrt(40^2-4*3*-59)]/6
x = [40 +- sqrt(2308)]/6
x = [40 +- 48.0416486...]/6
x = 14.673609... or x = -1.340274767...
================
Cheers,
Stan H.