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Marina230598
@Marina230598
August 2022
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В каком случае выражение преобразовано в тождественно равное?
1) 3(x − y )= 3 x − y
2) ( 3 + x )( x − 3 )= 9 − x 2
3) ( x − y )2 = x 2 − y 2
4) ( x + 3 )2 = x 2 + 6 x +9
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mailforazi
Под цифрой 4)
1) 3x-3y
2) x²-9
3) x²-2xy+y²
4) x²+6x+9
3 votes
Thanks 3
lizaliza1234567890
4)
shugayup
Ответ на ваш вопрос 4:-)
1 votes
Thanks 1
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Answers & Comments
1) 3x-3y
2) x²-9
3) x²-2xy+y²
4) x²+6x+9