Предмет: Математика, автор: maksim110520

(с^3+d^3)(c^3-d^3)

помогите решить

Ответы

Автор ответа: adelina22855
1
2 2 2 2
(3c+3d)(3c-3d)=9c-9cd+9cd-9d= 9c-9d


(Если что двойки сверху это квадрат ,во второй степени)
adelina22855: Вторая степень у 9с и 9d
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