Предмет: Математика, автор: peplolapkahehe


СРОЧНО

Спростіть вираз:
(x + 8)² - x (x + 5);
2х(х+2)-(х-2)²

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Ответы

Автор ответа: Пеппер
1

Пошаговое объяснение:

(x + 8)² - x (x + 5); х²+16х+64-х²-5х=11х+64

2х(х+2)-(х-2)²=2х²+4х-х²+4х-4=х²+8х-4

peplolapkahehe: СПАСИБОЧКИ ❤️❤️❤️❤️
Автор ответа: lhelpyou
0

Ответ:

(x+8)^{2} - x (x + 5)= x^{2} +16x+64-x^{2} -5x= 11x+64

2x(x+2)-(x-2)^{2}= 2x^{2} +4x-(x^{2} -4x+4)= 2x^{2} +4x-x^{2} +4x-4= x^{2} +8x-4

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