phan tich da thuc thanh nhan tu
\(2x^3-x^2+5x+3\)
phan tich da thuc thanh nhan tu x^3-5x^2+2x+8
X^4+4x^3+5x^2+2x+1
Phan tich da thuc thanh nhan tu
phan tich da thuc thanh nhan tu : 4x^4+4x^3+5x^2 +2x +1
phan tich da thuc thanh nhan tu (x^2+2x+3).(2x^2+2x+5)-8
phan tich da thuc thanh nhan tu a. x^3+x+2
b, x^4+5x^3+10x-4
\(x^3+x+2=\left(x^3+1\right)+\left(x+1\right)\)
\(=\left(x+1\right)\left(x^2-x+1\right)+\left(x+1\right)\)
\(=\left(x+1\right)\left(x^2-x+1+1\right)\)
\(=\left(x+1\right)\left(x^2-x+2\right)\)
\(b,x^4+5x^3+10x-4=\left(x^4-4\right)+\left(5x^3-10x\right)\)\(=\left(x^2+2\right)\left(x^2-2\right)+5x\left(x^2+2\right)\)
\(=\left(x^2+2\right)\left(x^2-2+5x\right)\)
phan tich da thuc thanh nhan tu :x^5+2x^4+3x^3+2x^2+2x+1
x^5+2x^4+2x^3+2x^2+2x+1
=(x^5+x^4)+(x^4+x^3)+(x^3+x^2)+(x^2+x)+(x+1)
=x^4(x+1)+x^3(x+1)+x^2(x+1)+x(x+1)+(x+1)
=(x+1)(x^4+x^3+x^2+x+1)
Phan tich da thuc x^2 + y^3 + 2x^2 -2cy + 2y^2 thanh nhan tu
phan tich da thuc thanh nhan tu
x^4+x^3+2x^2+x+1
x4+x3+2x2+x+1=x4+x3+x2+x2+x+1=(x4+x3+x2)+(x2+x+1)
=x2(x2+x+1)+(x2+x+1)
=(x2+x+1)(x2+1)
=(x^4+2x^2+1)+(x^3+x)
=(x^2+1)^2+x(x^2+1)
(x^+1)*(x^2+1+x0
phan tich da thuc thanh nhan tu
x^3+x+2
x^3-2x-1
1)
\(=\left(x+1\right)\left(x^2-x+2\right)\)
2)\(=\left(x+1\right)\left(x^2-x-1\right)\)
x3 + x + 2 = x3 + x + 1 + 1
= (x + 1)(x2 + x + 1) + (x+1)
=(x+1)(x2 +2x + 2)
x3 - 2x -1