Respuesta :
Answer:
p = ±16
Step-by-step explanation:
p^2 =256
There will be two solutions since p is to the second power.
Take the square root of each side
sqrt(p^2) = sqrt(256)
p = ±16
[tex]p^2=256\iff p=\pm\sqrt{256}\\\\\sqrt{a}=b\iff b^2=a\\\\p=-16\ or\ p=16[/tex]
[tex]\text{because}\ 16^2=256\ and\ (-16)^2=256[/tex]