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alinakot987654321
@alinakot987654321
July 2022
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решите плиз
(x+2)(x-7) больше или равно 0
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roma1308
X^{2}-7x+2x-14 \geq 0
x^{2}-5x-14 \geq 0
D=25+56=81
x_{1}= \frac{5+9}{2}\geq7
x_{2}= \frac{5-9}{2}\geq
-2
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Answers & Comments
x^{2}-5x-14 \geq 0
D=25+56=81
x_{1}= \frac{5+9}{2}\geq7
x_{2}= \frac{5-9}{2}\geq-2