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(х+12)² = (х+13)²(х+12)² - (х+13)² = 0 [разложим на множители по формуле a²-b²=(a+b)(a-b)](x+12 + x+13)(x + 12 - (x+13)) = 0(2x+25)(x + 12 - x-13) = 0(2x+25)(-1) = 0-2x - 25 = 02x + 25 = 02x = -25x = -25/2x = -12.5
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Автор:
hudsonpi12 - 5 лет назад
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