Trang chủ » Hỏi đáp » Môn Toán (x-y) ^3 – 3(y-x) ^2 2x^2(x+1)+ 4x( x+1) 31/01/2025 (x-y) ^3 – 3(y-x) ^2 2x^2(x+1)+ 4x( x+1)
(x-y)^3-3(y-x)^2 =(x-y)^2(x-y)-3(x-y)^2 =(x-y)^2(x-y-3) 2x^2(x+1)+4x(x+1) =(2x^2+4x)(x+1) =2x(x+2)(x+1) Trả lời
1) (x-y)^3-3.(y-x)^2 =(x-y).(x-y)^2-3.(x-y)^2 =(x-y-3).(x-y)^2 2) 2x^2.(x+1)+4x.(x+1) =(2x^2+4x).(x+1) =2x.(x+2).(x+1) Trả lời
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