Question

Simplify the following expression: (5x2 + 3x + 4) − (2x2 − 6x + 3). If the final answer is written in the form Ax2 + Bx + C, what is the value of B?

Answer 1

9

Explanation:

Answer 2

`5 {x}^(2) + 3x + 4 - (2 {x}^(2) - 6x + 3) = \\ = 5 {x}^(2) + 3x + 4 - 2 {x}^(2) + 6x - 3 = \\ = 3 {x}^(2) + 9x + 1`
The value of B is 9.