How do you solve #5x^2+64=0#?
While there are many ways to solve quadratic equations like this one, the quadratic formula is one of the simplest.
The quadratic formula looks like this:
To use this equation, we simply plug in the values given in the problem. To find these values, we must acknowledge that a quadratic equation looks like this:
Once we know this, we can determine that our equation has an a value of 5, because it is multiplied by
Now, we can plug in the values of a, b, and c.
We simplify to get:
When we simplify, the two x values are: