Question

Hallar el valor de x


A) 8/5X-3/2 = (-1/2)^2+2X
B) 5X-2/3-√1/4+1/2X

Por favoor

Answer 1

Explicación paso a paso:

$a) \\ \frac{8}{5} x - \frac{3}{2} = ( - \frac{1}{2} )^{2} + 2x \\ \\ \frac{8}{5} x - \frac{3}{2} = \frac{1}{4} + 2x \\ \\ \frac{8}{5} x - 2x = \frac{1}{4} + \frac{3}{2} \\ \\ \frac{8 - 10}{5} x = \frac{1 + 6}{4} \\ \\ - \frac{2}{5} x = \frac{7}{4} \\ \\ x = \frac{7}{4} \div ( - \frac{2}{5} ) \\ \\ x = - \frac{35}{8} \\ comprobación \\ \frac{8}{5} \times ( - \frac{35}{8} ) - \frac{3}{2} = ( { - \frac{1}{2} )}^{2} + 2 \times ( - \frac{35}{8} \\ \\ - \frac{280}{40} - \frac{3}{2} = \frac{1}{4} + ( - \frac{70}{8} ) \\ \\ - 7 - \frac{3}{2} = \frac{1}{4} - \frac{35}{4} \\ \\ \frac{ - 14 - 3}{2} = - \frac{34}{4} \\ \\ - \frac{17}{2} = - \frac{17}{2}$