If p is not equal to zero, and p+1/p = 5, then what is the value of p^4 + (1/p)^4? Pick one: A) 527 B) 247 C) 547 D) 527 E) 537
p + 1/p=5   we square both sides so we have p^2 + 1/p^2 +2 = 25   or p^2 + 1/p^2= 23   squaring again we have p^4 + 1/p^4 + 2 = 529   or p^4 + 1/p^4 = 527   answer =527 (527)
<result>D</result>
If p is not equal to zero, and p+1/p = 5, then what is the value of p^4 + (1/p)^4?