С 21 по 28 плиз,............

Question

С 21 по 28 плиз,............

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Answer 1

21. = 6b^2+4b-9b-6-6b^2-9b = -14b-6 = -2(7b+3)

22. =6a^2-9a-2a+3-6a^2-10a = -21a+3 = -3(7a+1)

23. =m^2+6m+9-m^2+4= 6m+13

24. =a^2-2a+1-a^2+2a-a+2= 3-a

25. =c^2-3c+2c-6-c^2+2c-1 = c-7

26. =y^2-4^2-y^2+6y-9 = 6y-25

27. =a^2+4a-2a-8-a^2-2a-1 = -9

28. =b^2-4b+2b-8-b^2+2b-1 = -9

Answer 2

21. = 6b^2+4b-9b-6-6b^2-9b = -14b-6 = -2(7b+3)

22. =6a^2-9a-2a+3-6a^2-10a = -21a+3 = -3(7a+1)

23. =m^2+6m+9-m^2+4= 6m+13

24. =a^2-2a+1-a^2+2a-a+2= 3-a

25. =c^2-3c+2c-6-c^2+2c-1 = c-7

26. =y^2-4^2-y^2+6y-9 = 6y-25

27. =a^2+4a-2a-8-a^2-2a-1 = -9

28. =b^2-4b+2b-8-b^2+2b-1 = -9