Question

Помогите пожалуйста решить 8 задание 1 и 2 варианта

Answer 1

$1) left { {{log_3(x+y) = 2} atop {9^{log_3sqrt{x-y}}}=5} right.\left { {{x+y = 9} atop ({sqrt{x-y})^{log_39}}=5}} right. \left { {{x = 9-y} atop {x-y = 5}} right. \left { {{x = 7} atop {y = 2}} right. \2) left { {{log_2(x-y) = 3} atop {4^{log_2sqrt{x+y}} = 10}} right. \left { {{x-y=8} atop {(sqrt{x+y})^{log_24}=10}} right.\left { {{x = 8+y} atop {x+y=10}} right.  \left { {{x=9} atop {y=1}} right.$