SOLUTION: I don't understand how to use the formula of ax^+bx+c=0 My problem is this x^2+7x=180 I need x answered

Question 220887: I don't understand how to use the formula of ax^+bx+c=0
My problem is this x^2+7x=180
I need x answered
Found 2 solutions by edjones, josmiceli:
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
x^2+7x=180
x^2+7x-180=0
a=1, b=7, c=-180
.
Ed
.

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=769 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 10.365424623862, -17.365424623862. Here's your graph:

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The equation is called quadratic, or 2nd degree.
When you plot it on a graph, it's called a parabola.
It's in the form , but first
subtract from both sides, and it will be in
that form

Matching it up with the general equation,

Now use the quadratic formula to solve

769 isn't a perfect square- are you sure you
copied this right?
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