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asyalegova
@asyalegova
August 2022
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СРОЧНО!!!
1.Решите уравнение:
(1 + 5х)(5х - 1) - 10(х - 2) = 19
2.Упростите выражение:
10 + 2b 2 4
———— — ——— + ——
25 - b^2 b - 5 b
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Aaaa001
№1
(1+5x)(5x-1)-10(x-2)=19
25x^2-1-10x+20=19
25x^2-10x=0
5x(5x-2)=0
5x=0:5x-2
5x=0
x=0
1 votes
Thanks 2
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Answers & Comments
(1+5x)(5x-1)-10(x-2)=19
25x^2-1-10x+20=19
25x^2-10x=0
5x(5x-2)=0
5x=0:5x-2
5x=0
x=0