Question

Please help me friends​

Answer 1

Answer:

322

Step-by-step explanation:

hope this helps you

Answer 2

Answer:

hope it helps/... :)

Step-by-step explanation:

p+1/p =  7 (take cube on both sides)

(p+1/p)^3 = (7)^3  (there's a formula for (A+B)^3)

(A^3 + B^3) + 3 x AB (A+B)

p^3 + 1/ p^3 + 3 x px1/p (p+1/p) = 343

((underlined) numerator p will be cancelled out with denominator p)

p^3 + 1/ p^3 + 3(p+1/p) = 343

p^3 + 1/ p^3 + 3 (7) = 343

p^3 + 1/ p^3 +21 = 343

p^3 + 1/ p^3 = 343 - 21

p^3 + 1/ p^3 = 322