Add
Subtract
I 15x - 3x² + 4)+(6x - 4x² - 7)
- 7
6. (5x37x2 + 3x-4) -(8x + 2x + 3x 7)
2.-7x-y + 4xy - 2 and 4x*y + 1 - 8x y
3. (5 + 24 y 7y) + (-6y + 7y2 + 5)
7. 12x²y- 5xy + 3y) - (7xy - 6y2 + 5x'y)
8. (9x5 - 6x + 7x) - (7x*- 6x5 + 2x4)
4. (2x6x!- 12x - 4) + (-11x5 + 8x + 2x + 6) 9. Subtract 4x3 - 5x - 8 from 6x2 - 3x + 8
5. (3y - 2y + yt + 2y + 5) and (2y5 + 3y + 2+ 7) 10. (1.5y) + 4.8y2 + 12) - (y3 - 1.7y2 + 2y)
+ ​