Ответ:
y^2-10y-25=
=y^2-10y+25-50=
=(y-5)^2-50
Надеюсь помог:)
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Verified answer
Ответ:
y^2-10y-25=
=y^2-10y+25-50=
=(y-5)^2-50
Надеюсь помог:)