Question

Este ejercicio es el que me falta:(

Answer 1

Respuesta:

es la c) -33/40x² + 21/8 x

Explicación paso a paso:

$\frac{1}{2} x - (- 2x + \frac{1}{10} (3 {x}^{2} - 5( \frac{1}{4} x - {x}^{2} ) + \frac{1}{4} {x}^{2} ))$

$\frac{1}{2} - ( - 2 + \frac{1}{10} (3 {x}^{2} - \frac{5}{4} x + 5 {x}^{2} + \frac{1}{4} {x}^{2} ))$

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

$\frac{1}{2} x - ( - 2x + \frac{8}{10} {x}^{2} - \frac{5}{40} x + \frac{1}{40} {x}^{2} )$

$\frac{1}{2} x - ( - \frac{80}{40} x + \frac{32}{40} {x}^{2} - \frac{5}{40} x + \frac{1}{40} {x}^{2} )$

$\frac{1}{2} x - ( - \frac{85}{40} x + \frac{33}{40} {x}^{2} )$

$\frac{1}{2} x + \frac{85}{40}x - \frac{33}{40} {x}^{2}$

$\frac{20}{40} x + \frac{85}{40} x - \frac{33}{40} {x}^{2}$

$\frac{105}{40} x - \frac{33}{40} {x}^{2}$

$- \frac{33}{40} {x}^{2} + \frac{21}{8} x$