Question

5x + 4x2 - 9x + 8x2

Answer 1

`\begin{cases}\bf \large{\purple{ \implies}} \tt \: 5x \: + \: 4 {x}^(2) \: - \: 9x \: + \: 8 {x}^(2) \\ \\ \bf \large{\purple{ \implies}} \tt \: 4 {x}^(2) \: + \: 8 {x}^(2) \: + \: 5x \: - 9x \\ \\ \bf \large{\purple{ \implies}} \tt \: 12 {x}^(2) \: - \: 4x \end{cases}`

Answer 2

12x^2-4x

Explanation:

5x + 4x^2 - 9x + 8x^2

Combine like terms

4x^2+8x^2+5x-9x

12x^2-4x