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Fredbreyn
@Fredbreyn
July 2022
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Решите уравнение x^2-7x <= 30
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НоВыЙ13
X^2-7x-30<=0
D= 49-4*(-30)=49+120=169
x1;2= (7+/- 13)/2 = 10; -3
x∈[-3;10]
Ответ: X∈[-3;10]
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Answers & Comments
D= 49-4*(-30)=49+120=169
x1;2= (7+/- 13)/2 = 10; -3
x∈[-3;10]
Ответ: X∈[-3;10]