Answer:

1. S

2. U

3. E

4. A

5. N

6. C

7. K

8. L

9. W

10. B

11. I

12. T

Answer:

1.5x+15 = 5(X+3) S

2.4x²+10= 2x(2x+5) U

3.x²-121= b=11 (X+11) (x-11) E

4.4x²-81= b=9 (2x+9) (2x-9) A

5.x³+64=a=X and b=4 (X+4) (x²-4x+16) N

6. x³+27= (X+3)(x²-3x+9) C

7.x²-22x+121 =(x-11)² K

8.x²+6x+9=(X+3)²L

9.x²-2x-15= (x-5) (X+3) H

10.x²+8x-33= (x-3) (X+11) B

11.8x²+12+6xy+9y= 2(X+2)² I