Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(=5x\left(x^2-2xy+y^2\right)\)
\(=5x\left(x-y\right)^2\)
\(a,=\left(x-y\right)\left(x+y\right)-\left(x+y\right)=\left(x+y\right)\left(x-y-1\right)\\ b,=\left(x+y\right)\left(x-5\right)\\ c,=5x^2\left(x-y\right)-10x\left(x-y\right)=5x\left(x-2y\right)\left(x-y\right)\\ d,=x^2-2xy=x\left(x-2y\right)\\ e,=\left(3x-2y\right)\left(9x^2+6xy+4y^2\right)\)
5x2 + 10xy - 4x - 8y
= 5x(x + 2y) - 2(x - 2y)
= (5x - 2)(x + 2y)
=(5x2 + 10xy) - (4x + 8y) = 5x.(x + 2y) - 4.(x + 2y) = (5x - 4).(x + 2y)
5x\(^2\)- 10xy +5x\(^2\)-20z\(^2\)
= 5(x\(^2\)-2xy+x\(^2\)-4z\(^2\))
= 5(2x\(^2\)-2xy-4z\(^2\))
5^2-10xy+5x^2-20z^2
=5(x^2-2xy+y^2-4z^2)
=5((x-y)^2-4z^2)
=5(x-y-2z)(x-y+2z)
\(5x^3-5x^2y-10x^2+10xy=5x^2\left(x-y\right)-10x\left(x-y\right)=5x\left(x-2\right)\left(x-y\right)\)
\(5x^3-5xy^2+10xy-5x\)
\(=5x\left(x^2-y^2+2y-1\right)\)
\(=5x\left[x^2-y^2+y+y-1\right]\)
\(=5x\left[x^2-y\left(y-1\right)+\left(y-1\right)\right]\)
\(=5x\left[x^2-\left(y+1\right)\left(y-1\right)\right]\)
\(=5x\left[x^2-\left(y^2-1^2\right)\right]\)
\(=5x\left[\left(x-y\right)\left(x+y\right)+1\right]\)
Lâu k làm, sai thông cảm
Answer:
\(5x^3-5xy^2+10xy-5x\)
\(=5x\left(x^2-y^2+2y-1\right)\)
\(=5x[x^2-\left(y^2-2y+1\right)]\)
\(=5x[x^2-\left(y-1\right)^2]\)
\(=5x\left(x-y+1\right)\left(x+y-1\right)\)