Đáp án:
Sửa `x^2-2xy+y+3x-3y-10->x^2-2xy+y^2+3x-3y-10`
Nếu đề khác thì bình luận mình sửa nha !!!
Giải thích các bước giải:
`x^2-2xy+y^2+3x-3y-10`
`=(x-y)^2+3(x-y)-10`
`=(x-y)^2-2(x-y)+5(x-y)-10`
`=(x-y)(x-y-2)+5(x-y-2)`
`=(x-y-2)(x-y+5)`
Đáp án+Giải thích các bước giải:
`x^2-2xy+y+3x-3y-10`
*Sửa đề `x^2-2xy+y^2+3x-3y-10`
`=(x^2-2xy+y^2 )-( 3x +3y) - 10`
`=(x-y)^2-3(x+y)-10`
`=(x-y+3)(x-y)-10`
Mọi người giúp mình bạn này nhé
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