Question

1. Add the following expressions:
- 5x^y + 3xy2 - 7xy + 8, 12x²y - 5xy2 + 3xy - 2​

Answer 1

Question:

Add the following expressions:

- 5x^y + 3xy2 - 7xy + 8, 12x²y - 5xy2 + 3xy - 2

Solution:

$- 5 {x}^{2} y + 3x {y}^{2} - 7xy + 8 \\ + 12 {x}^{2} y - 5x {y}^{2} + 3xy - 2 \\ = 7 {x}^{2} y - 2x {y}^{2} - 4xy + 6$