# Factoring.?

The work doesn't need to be shown or anything. If you can only do a couple, that's fine too. Thank you!! :]

1. x^2-64

2. x^2-10x+21

3. 6x^2-7x+2

4. y^5+3y^3+4y^2+12

5. 9x^2-16

6. a^2+12a+27

7. 12x^5-6x^3+3x^2

8. 4y^2-17y-15

9. x^2-7x-18

10. x^2-8x+16

11. 49x^2-1

12. y^2+10y+25

13. x^4-81

14. a^2+11a+30

15. 75x^2-30x+3

16. x^2+3x+8x+24

17. x^2-2x-3

18. y^2-6y+5

19. 14x^3-7x^2+21x

20. 49a^2-28a+4

21. a^2-9a+14

22. 8x^3-4x^3+12x^2

23. 9y^2-12y+4

24. 8t^2+2t-3

25. 3t^2-8t-3

26. y^2-22y+121

27. 25t^2-4

28. 9x^2+42x+49

29. 12x^2+4x-5

30. 8x^2-29x-12

I know it's a lot, but I'll take whatever help I can get though. Thanks again!! :] :] :]

Relevance

I'll bet it took longer to type these all out than it would take you to solve them! This was fun, and easy!

1. x^2-64 = (x-8)(x+8)

2. x^2-10x+21 = (x-3)(x-7)

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

4. y^5+3y^3+4y^2+12 = (y^3+4)(y^2+3)

5. 9x^2-16 = (3x-4)(3x+4)

6. a^2+12a+27 = (a+9)(a+3)

7. 12x^5-6x^3+3x^2 = 3x^2(4x^3-2x+1)

8. 4y^2-17y-15 = (4y+3)(y-5)

9. x^2-7x-18 = (x+2)(x-9)

10. x^2-8x+16 = (x-4)(x-4)

11. 49x^2-1 = (7x-1)(7x+1)

12. y^2+10y+25 = (y+5)(y+5)

13. x^4-81 = (x^2-9)(x^2+9) = (x-3)(x+3)(x^2+9)

14. a^2+11a+30 = (a+5)(a+6)

15. 75x^2-30x+3 = (15x-3)(5x-1)

16. x^2+3x+8x+24 = (x+3)(x+8)

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

18. y^2-6y+5 = (y-1)(y-5)

19. 14x^3-7x^2+21x = 7x(2x^2-x+3)

20. 49a^2-28a+4 = (7a-2)(7a-2)

21. a^2-9a+14 = (a-2)(a-7)

22. 8x^3-4x^3+12x^2 = 4x^2(x+3)

23. 9y^2-12y+4 = (3y-2)(3y-2)

24. 8t^2+2t-3 = (4t+3)(2t-1)

25. 3t^2-8t-3 = (3t+1)(t-3)

26. y^2-22y+121 = (y-11)(y-11)

27. 25t^2-4 = (5t-2)(5t+2)

28. 9x^2+42x+49 = (3x+7)(3x+7)

29. 12x^2+4x-5 = (6x+5)(2x-1)

30. 8x^2-29x-12 = (8x+3)(x-4)

• 1)

x^2 - 64

= (x + 8)(x - 8)

2)

x^2 - 10x + 21

= (x - 7)(x - 3)

3)

6x^2 - 7x + 2

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

4)

y^5 + 3y^3 + 4y^2 + 12

= (y^2 + 3)(y^3 + 4)

5)

9x^2 - 16

= (3x + 4)(3x - 4)

6)

a^2 + 12a + 27

= (a + 9)(a + 3)

7)

12x^5 - 6x^3 + 3x^2

= 3x^2(4x^3 - 2x + 1)

8)

4y^2 - 17y - 15

= (4y + 3)(y - 5)

9)

x^2 - 7x - 18

= (x + 2)(x - 9)

10)

x^2 - 8x + 16

= (x - 4)(x - 4)

11)

49x^2 - 1

= (7x + 1)(7x - 1)

12)

y^2 + 10y + 25

= (y + 5)(y + 5)

13)

x^4 - 81

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

= (x^2 + 9)(x + 3)(x - 3)

14)

a^2 + 11a + 30

= (a + 6)(a + 5)

15)

75x^2 - 30x + 3

= (15x - 3)(5x - 1)

16)

x^2 + 3x + 8x + 24

= x^2 + 11x + 24

= (x + 8)(x + 3)

17)

x^2 - 2x - 3

= (x + 1)(x - 3)

18)

y^2 - 6y + 5

= (y - 5)(y - 1)

19)

14x^3 - 7x^2 + 21x

= 7x(2x^2 - x + 3)

20)

49a^2 - 28a + 4

= (7a - 2)(7a - 2)

21)

a^2 - 9a + 14

= (a - 7)(a - 2)

22)

8x^3 - 4x^3 + 12x^2

= 4x^3 + 12x^2

= 4x^2(x + 3)

23)

9y^2 - 12y + 4

= (3y - 2)(3y - 2)

24)

8t^2 + 2t - 3

= (4t + 3)(2t - 1)

25)

3t^2 - 8t - 3

= (3t + 1)(t - 3)

26)

y^2 - 22y + 121

= (y - 11)(y - 11)

27)

25t^2 - 4

= (5t + 2)(5t - 2)

28)

9x^2 + 42x + 49

= (3x + 7)(3x + 7)

29)

12x^2 + 4x - 5

= (6x + 5)(2x - 1)

30)

8x^2 - 29x - 12

= (8x + 3)(x - 4)

• i do no longer like the teach or any teach that treats human beings the way they do and destroy the hearts of folk the way they do and keep in ideas SIMON COWELL & CO HAVE MADE thousands of thousands OUT OF THIS and the heartbreak they reason they could be banned so i trust you X element X element X element!!!!??? Is that adequate X element now?? do we end taking place about it, please???xx end those PROGRAMMES ALTOGETHER positioned THE YALIBAN in cost they're going to quickly have them stopped

• 2. (x-3)(x-7)

i did one :D