SOLUTION: Solve using the quadratic formula. f(x)=x^2+8x-3 Show work please, thanks/.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve using the quadratic formula. f(x)=x^2+8x-3 Show work please, thanks/.      Log On


   

Question 1000982: Solve using the quadratic formula. f(x)=x^2+8x-3
Show work please, thanks/.
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Here, a=1, b=8, and c=-3.
Plugging in to the quadratic formula we get
x = (-8 +/- sqrt(8^2 - 4(1)(-3)))/2
x = (-8 +/- sqrt(64 + 12))/2
x = (-8 +/- sqrt(76))/2
x = (-8 +/- 2*sqrt(19))/2
x = -4 +/- sqrt(19