Question

сократить дробь

q^2-p^2
÷÷÷÷÷÷
p^3+q^3

Answer 1

=(q-p)(q+p) / (p+q)(p^2-pq+q^2)=q-p/p^2-pq+q^2=q-p/(p-q)^2=1/p-q