Question

пожалуйста очень срочно

Answer 1

$left { 3x ^{2} +2y ^{2} =50 atop {12 x^{2} +8 y ^{2} =50x}} right.$
(3x ^{2} +2y ^{2} =50)*4=12x ^{2} +8y ^{2} =200
12x-12x=0
8y-8y=0
50-200=150