hi there i want help with this quadratic equation.. im quiet young.. so try to explain it step by step so i can understand
y= 2x3+3x+19
p.s. the first 3 is squared
can someone identify a b and c value?? Thanks very much.. try fully explain it to me so i can do it next time by myself.. thanks
If you have the formula: , then the 2 is your a value, the 3 is your b value, and the 4 is your c value.
Like i said before: quadratic equations are in the format:
I'm sure you understand that.
The quadratic formula:
Thats how the formula looks, and you have to learn that format.
Let's say we want to solve that equation at the top that i used to explain.
Then wherever there is an a, we substitute it with 2.
Wherever there is a b, we substitute it with 3.
Wherever there is a c, we substitute it with 4.
Do you understand?
To be a quadratic equation, it needs x^2 in it, where the power symbol ^ is used to mean that x is to the power 2.
You can learn a lot by reading some worked out examples as well as entering your own at webgraphing.com:
Free Online Quadratic Equation Solver: Solve by Quadratic Formula
It will give you step by step walk through on any quadratic equation. To start you might just click the button for solving a random equation, just to see how it looks. Then enter your own and read the worked-out solution.