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sashasamyonov
@sashasamyonov
October 2021
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разложить на множители а)x^2-7x+10 б)3x^2-5x-2 заранее спасбо
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DariosI
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А)x²-7x+10=(x²-2x)-(5x-10)=x(x-2)-5(x-2)=(x-2)(x-5)
б) 3x²-5x-2=3x²-6x+x-2=(3x²-6x)+(x-2)=3x(x-2)+(x-2)=(3x+1)(x-2)=
=3(x+1/3)(x-2)
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А)x²-7x+10=(x²-2x)-(5x-10)=x(x-2)-5(x-2)=(x-2)(x-5)б) 3x²-5x-2=3x²-6x+x-2=(3x²-6x)+(x-2)=3x(x-2)+(x-2)=(3x+1)(x-2)=
=3(x+1/3)(x-2)