Solve, give exact solutions (p-7)^2=5

Question

need help to get answer

Answer 1

(p-7)² = 5   take square root of both sides

 

p-7 = ±√5    notice we have the positive and negative root

 

p= 7 ± √5    this gives two answers for p

 

p = 7 + √5  and p = 7 - √5

 

 

Answer 2

(p-7)² = 5

 

Take the square root of both sides:

 

√(p-7)² = √5

 

p - 7 = ±√5

 

Can you finish it from here?