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Narinj
@Narinj
August 2022
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Решите пример по алгебре 8 класс:4x в квадрате+6x=7x в квадрате-12x
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vorkyt
4 x^{2} +6x=7 x^{2} +12x
4 x^{2} -7 x^{2} =12x-6x
-3 x^{2} = 6xx^{2} =-2x
x^{2} +2x=0
x(x+2)=0x=0 ;
x+2=0
x_{1} =0; x_{2} =-2
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Answers & Comments
4 x^{2} -7 x^{2} =12x-6x
-3 x^{2} = 6xx^{2} =-2x
x^{2} +2x=0
x(x+2)=0x=0 ;
x+2=0
x_{1} =0; x_{2} =-2