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diiia1
@diiia1
August 2022
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Решите уравнение а)2х+6(х+2)=-4
Б)5х^2-8х+3=0
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viiktoriya
А) 2x+6(x+2)=-4
2x+6x+12=-4
2x+6x=-4-12
8x=-16
x=-2
б) 5x^2-8x+3=0
D=64-4*5*3=64-60=4 D=2
x1=8-2/10=6/10=3/5
x2=8+2/10=10/10=1
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Answers & Comments
2x+6x+12=-4
2x+6x=-4-12
8x=-16
x=-2
б) 5x^2-8x+3=0
D=64-4*5*3=64-60=4 D=2
x1=8-2/10=6/10=3/5
x2=8+2/10=10/10=1