Предмет: Алгебра, автор: Аноним

тоже дуже потрібно допоможіть пжпжпж

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Ответы

Автор ответа: qq0o

Ответ:

$9x^{2} +12x+4-(x^{2} -2x+1)=\\9x^{2} +12x+4-x^{2} +2x-1=\\9x^{2} -x^{2} +12x+2x+4-1=\\8x^{2} +14x+3$

Автор ответа: wrdertwrtyrwruyeegfw

(3x+2)²-(x-1)²

9x²+12x+4-(x-1)²

9x²+12x+4-x²+2x-1

8x²+12x+4+2x-1

відповідь 8х²+14+3

пж 5 зірок

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