Question

solve question numbers 4 those who answered I will mark him brilliant​

Answer 1

Explanation:

this would be a correct answer

hope it will helpful for you

Answer 2

Explanation:

1. (4a + 12ab - 5b) - (2a - 7ab + 3b)

= 4a + 12ab - 5b - 2a + 7ab - 3b

= 4a - 2a + 12ab + 7ab - 5b - 3b

= 2s + 19ab - 8b

2. (10a²b + 20ab + 8ab²) - (4a²b + 5ab - 6ab²)

= 10a²b + 20ab + 8ab² - 4a²b - 5ab + 6ab²

= 10a²b - 4a²b + 20ab - 5ab + 8ab² + 6ab²

= 6a²b + 15ab + 14ab²

3. (10y - 10xyz + 4x²y - 4x) - (4x²y + 6xyz - 3x + 4y)

= 10y - 10xyz + 4x²y - 4x - 4x²y - 6xyz + 3x - 4y

= 10y - 4y - 10xyz - 6xyz + 4x²y - 4x²y - 4x + 3x

= 6y - 16xyz - x