Question

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Answer 1

Ответ:99

Объяснение: 144х-9-144х+36х

-9+36×3=99

Answer 2

Ответ:

$(12 \times 3 + 3)(12 \times 3 - 3) - 12 \times 3(12 \times 3 - 3) = 39 \times 33 - 12 \times 3 \times 33 = 1287 - 1188 = 99$