\(=\left(3x-1\right)\left(3x+1\right)\)

(x-1)*x^2*(x^3+x^2-9)

x⁴(x² - 1) - 9x²(x - 1)

=x⁴(x - 1)(x + 1) - 9x²(x -1)

=(x - 1)(x⁵ + x⁴ - 9x²)

= x⁴(x²-1)-9x²(x-1)

=x⁴(x-1)(x+1)-9x²(x-1)

=(x⁴(x+1)-9x²)(x-1)

=(x⁵+x⁴-9x²)(x-1)

(x^3-3x-3)(x^6+3x^4-6x^3+9x^2-9x+9)

dễ cực lun

3 k cho người đánh nhung

a³ + 2a² - 13a + 10

= a³ - a² + 3a² - 3a - 10a +10

= a²(a-1) + 3a(a-1) -10(a-1)

= (a-1)(a²+3a-10)

= (a-1)(a-2)(a+5)

\(x^6-x^4-9x^3+9x^2\)

\(=x^6-x^5+x^5-x^4-9x^2\left(x-1\right)\)

\(=x^5\left(x-1\right)+x^4\left(x-1\right)-9x^2\left(x-1\right)\)

\(=\left(x-1\right)\left(x^5+x^4-9x^2\right)\)

\(x^6-x^4-9x^3+9x^2\)

\(=x^4.\left(x^2-1\right)-9x^2\left(x-1\right)\)

\(=x^4.\left(x-1\right)\left(x+1\right)-9x^2\left(x-1\right)\)

\(=\left(x-1\right)\left[x^4.\left(x+1\right)-9x^2\right]\)

\(=\left(x^5+x^4\right)\left(x-1\right)-\left(3x\right)^2\left(x-1\right)\)

\(=\left(x-1\right)\left(x^5+x^4-9x^2\right)\)

\(=\left(x-1\right)\left[x^5+x^2\left(x^2-3^2\right)\right]\)

\(=\left(x-1\right)x^2\left[x^3+\left(x+3\right)\left(x-3\right)\right]\)

x⁶ - x⁴ - 9x³ + 9x²

= x⁴.(x² - 1) - 9x².(x - 1)

= x⁴.(x - 1).(x + 1) - 9x².(x - 1)

= (x - 1).(x⁵ + x - 9x²)

= (x - 1).x.(x⁴ + 1 - 9x)

x^6-x^4-9x^3+9x^2

=x^2(x^4-x^2-9x+9)

=x^2[x^2(x^2-1)-9(x-1)]

=x^2[x^2(x-1)(x+1)-9(x-1)]

=x^2(x-1)[x^2(x+1)-9)]

=x^2(x-1)(x+1)(x^2-9)

=x^2(x-1)(x+1)(x-3)(x+3)