Answer:
4 x^2 - 1, this would be the answer to your question.
Answer:
[tex](2x - 1)(2x + 1)[/tex]
[tex]4 {x}^{2} - 1[/tex]
Step-by-step explanation:
[tex](2x - 1)(3x + 5) - (2x - 1)(x + 4)[/tex]
[tex](2x - 1) \times ((3x + 5) - ( \times + 4))[/tex]
[tex](2 \times - 1)(3x + 5 - x - 4)[/tex]
[tex](2x - 1)(2x + 1)[/tex]
[tex]4 {x}^{2} - 1[/tex]
