Question

4(x+1)² - (2x+5) (2x-1) ​

Answer 1

Respuesta:

9

Explicación paso a paso:

$4( {x + 1})^{2} - (2x + 5)(2x - 1) \\ = 4( {x}^{2} + 2x + 1) -( 4 {x}^{2} - 2x + 10x - 5) \\ = 4 {x }^{2} + 8x + 4 - 4 {x }^{2} - 8x + 5 \\ = 9$