Question

please simply step by step​

Answer 1

A option???????????

x(12x+5)

Answer 2

Answer:

$8 {x}^{2} - 2x(x - 1) + 3x(2x + 1)$

$= 8 {x}^{2} - 2 {x}^{2} + 2x + 6 {x}^{2} + 3x$

$= 12 {x}^{2} + 5x$

$= x(12x + 5)$