Question

Ultimul ex de jos va rog pana in 11!!!!

Answer 1

Răspuns:

x=11/10-[2si1/3-(1/2)²]:5/6

x=11/10-[(2·3+1)/3-1/4]:5/6

x=11/10-(⁴⁾7/3-³⁾1/4):5/6

x=11/10-(28/12-3/12)·6/5

x=11/10-25/12·6/5

x=11/10-⁵⁾5/2

x=11/10-25/10

x=(-14/10)⁽²= -7/5

Answer 2

Răspuns: $\purple{\bf x = - \dfrac{7}{5}}$

Explicație pas cu pas:

$\bf x = \dfrac{11}{10}-\Bigg[ 2\dfrac{1}{3}-\bigg(\dfrac{1}{2} \bigg)^{2}\Bigg] :\dfrac{5}{6}$

$\bf x = \dfrac{11}{10}-\bigg( \dfrac{2\cdot3+1}{3}-\dfrac{1}{4}\bigg) :\dfrac{5}{6}$

$\bf x = \dfrac{11}{10}-\bigg( \dfrac{^{4)} 7~}{3}-\dfrac{^{3)} 1}{4}\bigg) :\dfrac{5}{6}$

$\bf x = \dfrac{11}{10}-\bigg( \dfrac{28}{12}-\dfrac{3}{12}\bigg) \cdot\dfrac{6}{5}$

$\bf x = \dfrac{11}{10}- \dfrac{\not25}{\not12}\cdot\dfrac{\not6}{\not5}$

$\bf x = \dfrac{11}{10}- \dfrac{5}{2}\cdot\dfrac{1}{1}$

$\bf x = \dfrac{11}{10}- \dfrac{^{5)} 5~}{2}$

$\bf x = \dfrac{11}{10}- \dfrac{25}{10}$

$\bf x = - \dfrac{14^{(2}~ }{10}$

$\red{\boxed{\bf x = - \dfrac{7}{5}}}$

Nu iese număr rational pozitiv. E o greșeală in de scriere in carte.

Bafta multa !