Answer:
[tex]4 {x}^{2} - 23 + 15 \\ \\ 4 {x}^{2} - 20x + 3x + 15 \\ \\ 4x(x - 5) - 3(x - 5) \\ \\ (4x - 3)(x - 5) [/tex]
it's was helpful to you
