Solve x(x+9)+12=0 by using the Quadratic Formula.

approximately -1.63 and -7.37

Step-by-step explanation:

First of all, let's expand the parenthesis by multiplying x into both of its terms.

We get the equation:

The quadratic formula looks like this

where the equation is of the form

Comparing this to our equation above,

we can see that

Let's put these values into the quadratic formula.

approximately -1.63 and -7.37

You can also choose not to approximate the square root of 33, and you'd receive the answers:

b

step-by-step explanation: