Question

if p & q are the roots of x^2+2x+1=0 than the values of p^3+ q^3 becomes

Answer 1

Answer:

p+q=-2

pq =1

(p+q)^3=p^3+q^3+3pq(p+q)

2^3=p^3+q^3+3×1×2

p^3+q^3=8-6=2