раз -7 и 5 корни, то
(x + 7)(x - 5) = 0
x² - 5x + 7x - 35 = 0
x² + 2x - 35 = 0
x² + px + q = 0
p = 2
q = -35
ответ -35
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раз -7 и 5 корни, то
(x + 7)(x - 5) = 0
x² - 5x + 7x - 35 = 0
x² + 2x - 35 = 0
x² + px + q = 0
p = 2
q = -35
ответ -35