What is #5x^2-28x+19=0#?
2 Answers
See explanation below!
Explanation:
Recall that a linear equation in one variable is of the form
For example:
A quadratic equation has an
If we want to find the
- Guess and Check
- Solving by Square Roots (if b=0)
- Factoring
- Completing the Square
- The Quadratic Formula
We can solve graphically by equating the polynomial to
The solutions are
Explanation:
One way to find the solutions to a quadratic is to use the quadratic formula:
Here's our quadratic:
The values are
This is as simplified as the answer gets. The two final solutions are:
and
Here's the graph of the function (with an altered scale):
graph{5x^2-28x+19[-3,8,-30,20]}