Question

Factorise .....10. 240 - 546
11. 75x2 27
12. 3p% – 485
13. 63xy - 7
14. 16x² - (5y + x)2
15. (7a - 66)2 – 162
16. (4x + 5y)2 – 1
17. 16x2 - (5y + 7)?
18. 100 - (a – 4)
Evaluate :
19. (205)2 – (195)
20. (6.4)2-(3.6​

Answer 1

Answer:

11. 3(50- 9)

12. 1 (3p -485

13 - 7(9xy- 1)