Question

Q. 1. Add the following algebraic expressions or terms :

1. x²yz & 18x²yz

2. 4x²y²z² , x²y²z² &
-x²y²z²

3. 8xyz , - 23xyz & 17xyz

4. 20x²y²z² & -10x²y²z²

5. -7mnp, - 2 mnp & 7mnp

6. -35a²bc & 24a²bc

7. 25pqr , - 30pqr & 37pqr

8. 7u²vw & 26uvw²

9. 10xyz & 23x²yz

10. 14s²tv & 23st²v²

Q.2 Subtract the following :

1. 5 x²yz - 2x²yz

2. -9a²b²c² - 4a²b²c

3. 8x²y²z² - 6x²y²z²

4. - 37p²q²r -(- 24p²q²r)

5. - 22s²tv² - 2s²tv²

6. m²n²p² -17m²n²p²

7. 10xyz - xyz

8. - 2x²y²z² -2x²y²z²

9. 10abc - 10abc

10. -14s²tv² - 26s²tv²

11. 23x²yz - 14xy²z²

12. 12abc² - 20a²bc​

Answer 1

Step-by-step explanation:

1. 18x^4y^2z^2

2. 4x^2y^6z^6