Question

Multiply: (x + 3)(x – 4)

What is the middle term in the simplified product?
Ox
O-X
3x
O4x

Answer 1

- x

Explanation:

`(x + 3)(x - 4) \\ = x(x - 4) + 3(x - 4) \\ = {x}^(2) - 4x + 3x - 12 \\ = {x}^(2) - x - 12 \\ middle \: term \: = - x`