Question

помогите со вторым заданием

Answer 1

$left { {{x+y=10} atop {x^2-y^2=40}} right. ; left { {{x+y=10} atop {(x-y)(x+y)=40}} right. ; left { {{x+y=10} atop {10(x-y)=40}} right. ; left { {{x+y=10} atop {x-y=4}} right. ; left { {{2x=14} atop {2y=6}} right. ; left { {{x=7} atop {y=3}} right. \\7in (2,10)\\3in (2,10)\\Otvet:; ; A.$

Answer 2

спасибо