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A.Identify similar terms.

1. 3×y,-6×,xy,½xy

2. 3×,y,-7b,8ab,3b

3. 8ab,-7b,-8ab,3b

B.Find the sum .

1.(-6×-3)+(3×-9)

2.(3ײ+5×-9)+(-3×+4)

3.4ײy-3xy²+15xy-12+9xy²-14xy+19-13ײy+7xy²+16xy+21

C.Subtract the second polynomial from the first.

1. 8x+4y,5x-3y

2. 7x+5y-16z,2x-23y

3.4abc-19ab²c+9a²bc-23abc²,(16abc+35a²bc-48abc²)​


Sagot :

3xy, -6y, xy, {xy

2. 3x, y, 2x, y2

3. -ab, 0.5ab, 8by,

4. 8ab, -7b,-8ab, 3b

5. 4bm, 3bm, -10am, bm

6. -xy3, 10x3y,5x3,7xy3

7. -8xyz, -15yz, 0.3xyz, -15xyz

8. 10ds4,-ds, 10ds, 4dºs