SOLUTION: i am supposed to solve this equation y=2n^2+2n-24 using the quadratic formula and i dont know how can you help

Question 960248: i am supposed to solve this equation y=2n^2+2n-24 using the quadratic formula and i dont know how can you help
Found 2 solutions by lwsshak3, josmiceli:
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
y=2n^2+2n-24
solve for n using quadratic formula:

a=coefficient of n^2 =2
b=coefficient of n=2
c=constant=-24

n=-16/4=-4
or
n=12/4=3
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

The quadratic formula for this is:

where the form of the equation is:

Compare this with your equation
You can see that:

Now do the substitutions
Notice the [ +- ] in the middle of the formula
That means you will end up with 2 values for
( most likely )
------------------------------------

--------------
Now use the minus square root

-------------
Now I can say:

and

Multiply both sides by

This is the function that I started with
Here's the plot:

Hope this helps

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