TaRea 1º 5 m!!nee

1. 3x^3-6x^2-x+2= (3x^3+6x^2)-(x+2)
3x^2(x-2)-(x+2)
(x-2)(3x^2-1)

2. 23+22+3x+3= (2+2x^2)+(3x+3)
2x^2(x+1)+3(x+1)
(x+1)(2x+3)

3. 7x^3+14x^2+49x= 7x(x^2+2x-7)

4. 6x+48= 6(x+8)

5. 3x+7y-12x^2-28xy= (3x+7y)-12x^2-28xy)
(3+7x)-4x(3-7y)
(3x+7y)(1-4x)

6. 6x^4-4x^2+2x^2-3= (6x^4-4x^2)+(2x^2-3)
2x^2(3x^2-2)+(2x^2-3)

7. 6x^3-9x2-2x+3= (6x^3-9x^2)-(2x+3)
3x^2(2x+3)-(2x+3)
(2x+3)(3x^2-1)

8. 3x^6-6x^5+12x^4+27x^2= 3x^2(x^4-2x^3+4x^2+9)

9. -3x+21= 3(y+7)

10. 5x(x+6)+6x(x+6)= (x+6)(5+6x)