1. Factorise:
54x2 + 42x3 – 30x4
2. Factorise:
2x2yz + 2xy2z + 4xyz
3. Factorise:
30xy – 12x + 10y– 4
4. Regroup
the terms and factorise: z – 19 + 19xy – xyz
5. Factorise:
100x2 – 80xy + 16y2
6. Factorise:
16x4 – y4
7. Factorise:
x2 + 6x + 8
8. Factorise:
49y2 – 1
9. Divide
10(x3y2x2 + x2y3z2 + x2y2z3) by 5x2y2z2.
10. Simplify: 12(y2 + 7y + 10) ÷ 6(y + 5)
11. Factorise: 36p2- 84pq + 49q2
12. Factorise: (z - 1)2+ 2 (z-1) (2z+3) + (2z +3)2
13. x2 – 2xy + y2 – z2
14. 4a8- b8
15. 25x2 - (y + z)2
16. 121 - x2- y2 - 2xy
17. 14(3x – 5y)3 + 7(3x – 5y)2
18. 49x2 – 1
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