Упростите выражение
(y-9)^2+(4y-y)(y+6)
(x-4)(x+4)-(x-1)^2
(x-5)^2- (x-7)(x+7)
^-степень
Позяяяяяяяяяяяяяяяяяяяяяяяязя
(y-9)^2+(4y-y)(y+6)
(x-4)(x+4)-(x-1)^2
(x-5)^2- (x-7)(x+7)
^-степень
Позяяяяяяяяяяяяяяяяяяяяяяяязя
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