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alenka20131
@alenka20131
July 2022
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помогите, найдите значение выражения 7 класс: 1) a2-3a+4 при a=1.5 ; 2)3b2+2b-1 при b=1/3
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sugillite
1) а2-3а+4 при а=1.5
1.5*2-3*1.5+4 = 3-4.5+4= 3.5
Во втором b2 - степень?
1 votes
Thanks 2
alenka20131
во втором тоже квадрат
sugillite
все b с квадратами,да?
alenka20131
да
alenka20131
3b²+2b-1 при b=1/3
sugillite
хорошо.
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Answers & Comments
1.5*2-3*1.5+4 = 3-4.5+4= 3.5
Во втором b2 - степень?