Hi can anyone help me with these formulaes.

D = 1+P For P
1-P

and

3x² + 2x – 8 = 0

If anyone can help I would be gratefull

Thanks

How far have you gotten? Where are you stuck?

What rules do you know for transposing? How about factorizing?

How would you approach the problem?

We want to help you to do the problem, not do the problem for you, so we need to know where you're having trouble.

Can you post your working or thoughts?