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котёнчек
@котёнчек
August 2022
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Решите уравнение 10(х-2)^2-5х(2х-1)=-4
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выы2
10(x^2-4x+4)-10x^2+5x=-4
10x^2-40x+40-10x^2+5x=-4
-35x+40=-4
-35x=-44
X=44/35 или 1 9/35
3 votes
Thanks 1
Inelovens
10(x-2)^2-5x(2x-1)=-4
10x^2-20x+40-10x^2+5x+4=0
-15x+44=0
x=44/15=2,9(3)
Ответ:2,9(3)
3 votes
Thanks 2
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Answers & Comments
10x^2-40x+40-10x^2+5x=-4
-35x+40=-4
-35x=-44
X=44/35 или 1 9/35
10x^2-20x+40-10x^2+5x+4=0
-15x+44=0
x=44/15=2,9(3)
Ответ:2,9(3)