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emanon2
@emanon2
July 2022
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СРОЧНО ПОСЧИТАЙТЕ УРАВНЕНИЯ АААА
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Yumma
А. Х= +-2
Б. Х= +-1/3
В. 3х^2=27
х^2=9
х=+-3
Г. (2х+3) ^2=8
4х^2+12х+9=8
4х^2+12х+1=0
Д=144-4*4=128 = 4*4*4*2
Х= (-12 +- 8корень2) /4=
Х= -3 +- 2корень2
Д. х^2= (корень6+2корень5) ^2-4корень30
Х^2= 5+4корень30+20-4корень30
Х^2=5+20
Х^2=25
Х= +-5
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emanon2
спасибоо
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Answers & Comments
Б. Х= +-1/3
В. 3х^2=27
х^2=9
х=+-3
Г. (2х+3) ^2=8
4х^2+12х+9=8
4х^2+12х+1=0
Д=144-4*4=128 = 4*4*4*2
Х= (-12 +- 8корень2) /4=
Х= -3 +- 2корень2
Д. х^2= (корень6+2корень5) ^2-4корень30
Х^2= 5+4корень30+20-4корень30
Х^2=5+20
Х^2=25
Х= +-5