sqrt(x)+sqrt(y)=4 x+y-3*sqrt(x*y)=1

Вы ввели

  ___     ___    
\/ x  + \/ y  = 4

$$\sqrt{x} + \sqrt{y} = 4$$

            _____    
x + y - 3*\/ x*y  = 1

$$- 3 \sqrt{x y} + x + y = 1$$

Быстрый ответ

$$x_{1} = 1$$
=
$$1$$
=

1

$$y_{1} = 9$$
=
$$9$$
=

9

$$x_{2} = 9$$
=
$$9$$
=

9

$$y_{2} = 1$$
=
$$1$$
=

1

Численный ответ

x1 = 1.0 + 1.396163516995454e-33*i
y1 = 9.0 - 1.038342555903725e-33*i

x2 = 1.000000000000899 + 2.94120140667296e-12*i
y2 = 8.999999999999324 - 2.21929610317613e-12*i

x3 = 1.0 + 1.969068117061257e-25*i
y3 = 9.0 - 1.483143328226994e-25*i

x4 = 1.0 - 3.095298772116053e-29*i
y4 = 9.0 + 2.335048142831921e-29*i

x5 = 1.00000000000000
y5 = 9.00000000000000

x6 = 9.000000000000719 + 3.086782532139806e-12*i
y6 = 0.9999999999990456 - 4.090069274155051e-12*i

x7 = 9.0 - 2.788870006554664e-33*i
y7 = 1.0 + 3.697235421416888e-33*i

x8 = 9.0 + 2.532160798395694e-28*i
y8 = 1.0 - 3.361359933949367e-28*i

x9 = 9.0 + 1.327854856260249e-25*i
y9 = 1.0 - 1.761920409476933e-25*i

x10 = 1.0 - 7.035646538998079e-31*i
y10 = 9.0 + 5.29976508516439e-31*i

x11 = 9.0 - 7.549756212091017e-17*i
y11 = 0.9999999999999997 + 1.001338084075245e-16*i