x^3 -9x^2 +6x +16  

<=>x³ - 8x² - x² + 8x - 2x + 16  

<=>x²(x -8) - x(x - 8) - 2(x - 8)  

<=>(x - 8)(x² - x - 2) 

<=> (x - 8)(x + 1)(x - 2) 

\(x^3+9x^2+6x-16\)

\(=x^3+x^2-2x+8x^2+8x-16\)

\(=x\left(x^2+x-2\right)+8\left(x^2+x-2\right)\)

\(=\left(x^2+x-2\right)\left(x+8\right)\)

\(=\left(x^2-x+2x-2\right)\left(x+8\right)\)

\(=\left[x\left(x-1\right)+2\left(x-1\right)\right]\left(x+8\right)\)

\(=\left(x-1\right)\left(x+2\right)\left(x+8\right)\)

\(x^3-9x^2+6x+16=x^3-8x^2-x^2+8x-2x+16\)

\(=x^2.\left(x-8\right)-x.\left(x-8\right)-2.\left(x-8\right)\)

\(=\left(x-8\right).\left(x^2-x-2\right)=\left(x-8\right).\left(x^2-2x+x-2\right)\)

\(=\left(x+8\right)\left[x.\left(x-2\right)+\left(x-2\right)\right]\)

\(=\left(x+8\right).\left(x-2\right)\left(x+1\right)\)

\(x^3-9x^2+6x+16\)

\(=\left(x^3+x^2\right)-\left(10x^2+10x\right)+\left(16x+16\right)\)

\(=x^2.\left(x+1\right)-10x\left(x+1\right)+16\left(x+1\right)\)

\(=\left(x+1\right)\left(x^2-10x+16\right)\)

Tham khảo nhé~

      \(x^3-9x^2+6x+16\)

\(=x^3+x^2-10x^2-10x+16x+16\)

\(=x^2\left(x+1\right)-10x\left(x+1\right)+16\left(x+1\right)\)

\(=\left(x+1\right)\left(x^2-10x+16\right)\)

\(=\left(x+1\right)\left[x^2-2x-8x+16\right]\)

\(=\left(x+1\right)\left[x\left(x-2\right)-8\left(x-2\right)\right]\)

\(=\left(x+1\right)\left(x-2\right)\left(x-8\right)\)

Chúc bạn học tốt.

\(x^3-9x^2+6x+16=\left(x^3+x^2\right)-\left(10x^2+10x\right)+\left(16x+16\right)\)

\(=x^2.\left(x+1\right)-10x\left(x+1\right)+16\left(x+1\right)\)

\(=\left(x+1\right).\left(x^2-10x+16\right)\)

\(=\left(x+1\right).\left[\left(x^2-8x\right)-\left(2x-16\right)\right]\)

\(=\left(x+1\right)\left[x\left(x-8\right)-2\left(x-8\right)\right]\)

\(=\left(x+1\right)\left(x-2\right)\left(x-8\right)\)

x^3-9x^2+6x+16

=x^3+x^2-10x^2-10x+16x+16

=(x^3+x^2)-(10x^2+10x)+(16x+16)

=x^2(x+1)-10x(x+1)+16(x+1)

=(x+1)(x^2-10x+16)

=(x+1)(x^2-2x-8x+16)

=(x+1)[(x^2-2x)-(8x-16)]

=(x+1)[x(x-2)-8(x-2)]

=(x+1)(x-2)(x-8)

1: \(6x^2y-9xy^2+3xy\)

\(=3xy\left(2x-3y+1\right)\)

2: \(\left(4-x\right)^2-16\)

\(=\left(4-x-4\right)\left(4-x+4\right)\)

\(=-x\cdot\left(8-x\right)\)

3: \(x^3+9x^2-4x-36\)

\(=x^2\left(x+9\right)-4\left(x+9\right)\)

\(=\left(x+9\right)\left(x-2\right)\left(x+2\right)\)

1) \(6x^2y-9xy^2+3xy=3xy\left(2x-3y+1\right)\)

2) \(\left(4-x\right)^2-16=\left(4-x\right)^2-4^2=\left(4-x-4\right)\left(4-x+4\right)=-x\left(8-x\right)\)

3) \(x^3+9x^2-4x-36\\ =\left(x^3-2x^2\right)+\left(11x^2-22x\right)+\left(18x-36\right)\\ =x^2\left(x-2\right)+11x\left(x-2\right)+18\left(x-2\right)\\ =\left(x^2+11x+18\right)\left(x-2\right)\\ =\left[\left(x^2+2x\right)+\left(9x+18\right)\right]\left(x-2\right)\\ =\left[x\left(x+2\right)+9\left(x+2\right)\right]\left(x-2\right)\\ =\left(x+2\right)\left(x+9\right)\left(x-2\right)\)

a, = (x^3-x^2)-(4x^2-4x)+(4x-4)

    = (x-1).(x^2-4x+4) = (x-1).(x-2)^2

b, = (x^3+x^2)-(10x^2+10x)+(16x+16)

 = (x+1).(x^2-10x+16)

 = (x+1).[ (x^2-2x)-(8x-16) ] = (x+1).(x-2).(x-8)

k mk nha

a)= (x^3-x^2)-(4x^2-4x)+(4x-4)

    = (x-1).(x^2-4x+4)

    = (x-1).(x-2)^2

b)= (x^3+x^2)-(10x^2+10x)+(16x+16)

 = (x+1).(x^2-10x+16)

 = (x+1).[ (x^2-2x)-(8x-16) ]

 = (x+1).(x-2).(x-8)

P/s tham khảo nha