Question

EXERCISES
Factories
1. 9 -16
3. 81 - 167
5. 27° -32
23r-482
9. 2-64r
11. 150 - 6x2
13. 2011 - 45
15. 3-2-4-6
17. a - b +2be-c?
19. a + 2ab +62-9c
21. (a+b)'-a-b
3. 2 + 2xy + y -a + 2ab-bi
4.5-20
6.9 -2439
8.27-48b
10. 8ab-182
12. 2-507
14. (da +56) de
16. 4° -9° -2-3
18. 41-42+4+1
20.10802-3(-0)
22. x+y-2-2xy
24. 251 - 1011 364²
26. a 2 400 +4
22
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Answer 1

1.(3)square -(4)square

=(3+4)(3-4)

=7×-1

=-7

Answer 2

Answer:

I hope it'll help u some way..