SOLUTION: x2 + 12x − 1 = 0 x2 + 12x − 1 + 1 = 0 + 1 x2 + 12x = 1

Question 939144: x2 + 12x − 1 = 0
x2 + 12x − 1 + 1 = 0 + 1
x2 + 12x = 1

Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!
Given:
Since the equation is already set to zero, all you have to do is use the quadratic equation.

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=148 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.0827625302982193, -12.0827625302982. Here's your graph:

When rounded X equals 0.083 and -12.083
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SOLUTION: x2 + 12x &#8722; 1 = 0 x2 + 12x &#8722; 1 + 1 = 0 + 1 x2 + 12x = 1

SOLUTION: x2 + 12x − 1 = 0 x2 + 12x − 1 + 1 = 0 + 1 x2 + 12x = 1