Предмет: Алгебра, автор: НастяИ

решить методом интервалов неравенства:
a)(x+11)(x-9)<0
b)(x+3)(x-8)>0

Ответы

Автор ответа: Artem112
0
(x+11)(x-9)&lt;0 \ xin(-11; 9) \\ frac{x+3}{x-8}&gt;0 \ xin(-infty; -3)cup(8; +infty)
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