How do you solve using the quadratic formula #3x^2 + 4x - 1 = 0#?

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Answer 1 · 2015-05-12T15:40:00

A quadratic equation is written in the form:
#ax^2 + bx + c = 0#

In the given equation #3x^2+4x-1=0#

Where:
#a=3#
#b=4#
#c=-1#

The quadratic formula can be used to find the roots of any quadratic equation.

#x= (-b+- sqrt(b^2-4ac))/(2a)#

So I encourage you to plug in the values from this equation and simplify.

The answers should be #x = -1.54858 and x= 0.21525#