Question

7-993?///////////////////​

Answer 1

Объяснение:

на фото...........................

Answer 2

По формулам:

a^3-b^3=(a-b)(a^2+ab+b^2)

a^3+b^3=(a+b)(a^2-ab+b^2)

$\frac{16 ^{3} - 10 ^{3} }{24} = \frac{ (16 - 10)(256 + 160 + 100)}{24} = \\ \frac{6 \times 516}{24} = \frac{3096}{24} = 129 \\ \\ \\ \frac{9 ^{3} + 7 ^{3} }{32} = \frac{(9 + 7)(81 - 63 + 49)}{32} = \frac{16 \times 67}{32} = \frac{67}{2} = 33.5$