Ответ:
5/a=10/2a=25/a^2=5c/ac=5(a+b)/ a(a+b)
x-y/x+y=(x-y)(x+y)/(x+y)^2=(x-y)^2/(x+y)(x-y)=ax-ay/ax+ay=x^2-xy/x^2+xy
Объяснение:
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Ответ:
5/a=10/2a=25/a^2=5c/ac=5(a+b)/ a(a+b)
x-y/x+y=(x-y)(x+y)/(x+y)^2=(x-y)^2/(x+y)(x-y)=ax-ay/ax+ay=x^2-xy/x^2+xy
Объяснение: