Question

(b) (2x-1)(3x+5)-(2x - 1)(x+4)

Answer 1

Answer:

4 x^2 - 1, this would be the answer to your question.

Answer 2

Answer:

$(2x - 1)(2x + 1)$

$4 {x}^{2} - 1$

Step-by-step explanation:

$(2x - 1)(3x + 5) - (2x - 1)(x + 4)$

$(2x - 1) \times ((3x + 5) - ( \times + 4))$

$(2 \times - 1)(3x + 5 - x - 4)$

$(2x - 1)(2x + 1)$

$4 {x}^{2} - 1$