Phan tich da thuc thanh nhan tu : \(2x^2-6x+1\)
phan tich da thuc thanh nhan tu
A=x^6-2x^5-4x^4+6x^3+4x^2-2x-1
6x^2+5x+1
phan tich da thuc thanh nhan tu
Phân tích thành đa nhân tử
đc kết quả :
(2x+1)(3x+1)
:)
Phan tich da thuc sau thanh nhan tu
6x^3+x^2+x+1
\(6x^3+x^2+x+1=\left(6x^3+3x^2\right)+\left(-2x^2-x\right)+\left(2x+1\right)\)
\(=3x^2.\left(2x+1\right)-x.\left(2x+1\right)+\left(2x+1\right)=\left(2x+1\right)\left(3x^2-x+1\right)\)
K sai dau
giao an truong Tran dai nghia do
8x^3-12x^2+6x-1
phan tich da thuc thanh nhan tu chung
cái này dễ mà
= (2x)^3-3(2x)^2*1+2*3x*1^2-1^3
= (2x-1)^3
Phan tich da thuc thanh nhan tu
( x^2-6x+ 8)( x^2-8x +15) +1
Phan tich da thuc thanh nhan tu (1+2x)(1-2x)-x(x+2)(x-2)
\(\left(1+2x\right).\left(1-2x\right)-x.\left(x+2\right).\left(x-2\right)\))
\(=1-\left(2x\right)^2-x.x^2-2^2\)
\(=1-4x^2-x^3-4\)
Ko bt có đúng ko nữa
( 1 + 2x ) ( 1 - 2x ) - x ( x + 2 ) ( x - 2 )
= 1 - 4x2 - x ( x2 - 4 )
= 1 - 4x2 - x3 + 4x
= - ( x3 + 4x2 - 4x - 1 )
= - ( x3 - x2 + 5x2 - 5x + x - 1 )
= - [ x2 ( x - 1 ) + 5x ( x - 1 ) + ( x - 1 ) ]
= - ( x - 1 ) ( x2 + 5x + 1 )
phan tich da thuc sau thanh nhan tu
6x^3+x^2+x+1
Phan tich da thuc thanh nhan tu
(X^2-6x+8)(x^2-8x+15)+1
phan tich da thuc thanh nhan tu
x^2 -6x+16
\(x^2-6x+16\)
\(=x^2+2x-8x-16\)
\(=x^2+2x-\left(8x+16\right)\)
\(=x\left(x+2\right)-8\left(x+2\right)\)
\(=\left(x-8\right)\left(x+2\right)\)