Answer:
[tex]\sf p =\sqrt{\dfrac{q+3}{5}}[/tex]
Step-by-step explanation:
To find p in terms of q, we have to isolate p.
[tex]\sf \sqrt{(5p^2 - 1)^2}-2 = q\\\\[/tex]
5p² - 1 - 2 = q
5p² - 3 = q
Add 3 to both sides,
5p² = q + 3
Divide both sides by 5,
[tex]\sf p^2 = \dfrac{q+3}{5}\\\\\text{Take square root,}\\\\p =\sqrt{\dfrac{q+3}{5}}[/tex]