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horneddd
@horneddd
July 2022
2
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решите уравнение (2а²-5а)+12а-30
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ias85
2a^2-5a+12a-30=0
2a^2+7a-30=0
D=49+240=289
x1=5+17/4=5,5
x2=5-17/4=-3
1 votes
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PolinkaTimofejeva
Очень легко это сделать
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Answers & Comments
2a^2+7a-30=0
D=49+240=289
x1=5+17/4=5,5
x2=5-17/4=-3