Question

What are all of the solutions to the equation p2=256

Answer 1

`p^2=256\iff p=\pm√(256)\\\\√(a)=b\iff b^2=a\\\\p=-16\ or\ p=16`

`\text{because}\ 16^2=256\ and\ (-16)^2=256`

Answer 2

p = ±16

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