Question

Urgent!!
Dau

punctul d va rog​

Answer 1

Răspuns:

$x = \frac{7}{4}$

Explicație pas cu pas:

$\frac{2 {}^{2019} + {2}^{2020} + {2}^{2021} }{x} = \frac{ {32}^{404} }{0,5} \: , x \neq 0$

$\frac{(1 + 2 + {2}^{2} ) \cdot {2}^{2019} }{x} = \frac{ {2}^{2020} }{ \frac{1}{2} }$

$\frac{(1 + 2 + 4) \cdot {2}^{2019} }{x} = \frac{ {2}^{2020} }{ {2}^{ - 1} }$

$\frac{7 \cdot {2}^{2019} }{x} = {2}^{2021}$

$7 \cdot {2}^{2019} = {2}^{2021} \cdot x$

${2}^{2021} \cdot x = 7 \cdot {2}^{2019}$

$x = \frac{7 \cdot {2}^{2019} }{ {2}^{ 2021} } = \frac{7}{ {2}^{2} } = \boxed{ \frac{7}{4}}$