Mathematics, 31.07.2021 20:00 igivehead666

Tìm x biết a,(x-3)(x^2+3x+9)-x(x-4)(x+4)=21 b,(x+2)(x^2-2x+4)-x(x^2+2)=4 c,(x+2)(x^2-2x+4)-x(x-3)(x+3)=26 d,(4x+1)(16x^2-4x+1)-16x(4x^2-5)=17 e,(x-3)(x^2+3x+9)-(3x-17)=x^2-12 f,(4x^2+2x+1)(2x-1)-4x(2x^2-3)=23

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Tìm x biết a,(x-3)(x^2+3x+9)-x(x-4)(x+4)=21 b,(x+2)(x^2-2x+4)-x(x^2+2)=4 c,(x+2)(x^2-2x+4)-x(x-3)(x+...

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