Question

ex 17 punctul c
plss

Answer 1

Răspuns:

sper ca te am ajutat!

Explicație pas cu pas:

coroana?:)

Answer 2

$5^{x}$×$5^{2}$×$2^{x}$×$2$$+$$7$×$10^{x}$=$57000$

$5^{x}$×$25$×$2^{x}$×$2$$+$$7$×$10^{x}$=$57000$

$(5 X 2)^{x}$×$25$×$2$$+$$7$×$10^{x}$=$57000$

$10^{x}$×$25$×$2$$+$$7$×$10^{x}$=$57000$

$10^{x}$×$50$$+$$7$×$10^{x}$=$57000$

$50$ ×$10^{x}$×$+$$7$×$10^{x}$=$57000$

$57$×$10^{x}$=$57000$

$10^{x}$=$57000$$:$$57$

$10^{x}$=$57000$

$10^{x}$=$10^{3}$

$x$=$3$