Question

решите систему уравнений срочно плиз!!!!

Answer 1

2x-y^2=5
x=16-y^2
2(16-y^2)-y^2=5
32-2y^2-y^2=5
-3y^2=27
y^2=9
y1=-3
y2=3
x1=16-(-3)^2=7
x2=16-3^2=7
е)
x^2-3y=-5
x^2-y=1
x^2-3y=-5
y=x^2-1
x^2-3(x^2-1)=-5
x^2-3x^2+3=-5
-2x^2=-8
x^2=4
x1=-2
x2=2
y1=(-2)^2-1=3
y2=2^2-1=3