Объяснение:
a² - 10ab + 25a²b² - 25b² = a * (a - 10b) + 25b^2 * (a^2 - 1), при а = 22, b = -2.4
22 * (22 - 10 * -2.4) + 25 * (-2.4^2 - 1) = 484 + 528 + 144 - 25 = 1131
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Объяснение:
a² - 10ab + 25a²b² - 25b² = a * (a - 10b) + 25b^2 * (a^2 - 1), при а = 22, b = -2.4
22 * (22 - 10 * -2.4) + 25 * (-2.4^2 - 1) = 484 + 528 + 144 - 25 = 1131