Question

помогите пожалуйста, 8 класс

Answer 1

(5p+2)/(p^2-q^2)+ (5q+2)/(q^2-p^2)= (5p+2)/[(p-q)*(p+q)]+ (5q+2)/[(q-p)*(q+p)]=
= (5p+2)/[(p-q)*(p+q)]- (5q+2)/ [(p-q)*(p+q)]= [(5p+2)- (5q+2)] / [(p-q)*(p+q)]=
= (5p+2- 5q-2) / [(p-q)*(p+q)]= (5p-5q)/ [(p-q)*(p+q)]=5*(p-q)/ [(p-q)*(p+q)]=5/(p+q)