Немного не понял условия, поэтому распишу два случая
1) Если в условии уравнение: ![(\sqrt{x}-0.2)(x^{2}-2x-24)=0 (\sqrt{x}-0.2)(x^{2}-2x-24)=0](https://tex.z-dn.net/?f=%28%5Csqrt%7Bx%7D-0.2%29%28x%5E%7B2%7D-2x-24%29%3D0)
![\sqrt{x}-0.2=0\\\sqrt{x}=0.2\\x=0.04 \sqrt{x}-0.2=0\\\sqrt{x}=0.2\\x=0.04](https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D-0.2%3D0%5C%5C%5Csqrt%7Bx%7D%3D0.2%5C%5Cx%3D0.04)
![x^{2}-2x-24=0\\D = (-2)^{2}-5\times1\times(-24)=100=10^{2}\\x_{1,2}=\frac{2\pm10}{2}\\x_{1} = 6\\x_{2} = -4 x^{2}-2x-24=0\\D = (-2)^{2}-5\times1\times(-24)=100=10^{2}\\x_{1,2}=\frac{2\pm10}{2}\\x_{1} = 6\\x_{2} = -4](https://tex.z-dn.net/?f=x%5E%7B2%7D-2x-24%3D0%5C%5CD%20%3D%20%28-2%29%5E%7B2%7D-5%5Ctimes1%5Ctimes%28-24%29%3D100%3D10%5E%7B2%7D%5C%5Cx_%7B1%2C2%7D%3D%5Cfrac%7B2%5Cpm10%7D%7B2%7D%5C%5Cx_%7B1%7D%20%3D%206%5C%5Cx_%7B2%7D%20%3D%20-4)
Проверив корни уравнения, осталось только два верных: 0.04 и 6
Тогда их сумма 6.04
1) Если в условии уравнение: ![(\sqrt{x-0.2})(x^{2}-2x-24)=0 (\sqrt{x-0.2})(x^{2}-2x-24)=0](https://tex.z-dn.net/?f=%28%5Csqrt%7Bx-0.2%7D%29%28x%5E%7B2%7D-2x-24%29%3D0)
![\sqrt{x-0.2}=0\\x-0.2=0\\x=0.2 \sqrt{x-0.2}=0\\x-0.2=0\\x=0.2](https://tex.z-dn.net/?f=%5Csqrt%7Bx-0.2%7D%3D0%5C%5Cx-0.2%3D0%5C%5Cx%3D0.2)
![x^{2}-2x-24=0\\D = (-2)^{2}-5\times1\times(-24)=100=10^{2}\\x_{1,2}=\frac{2\pm10}{2}\\x_{1} = 6\\x_{2} = -4 x^{2}-2x-24=0\\D = (-2)^{2}-5\times1\times(-24)=100=10^{2}\\x_{1,2}=\frac{2\pm10}{2}\\x_{1} = 6\\x_{2} = -4](https://tex.z-dn.net/?f=x%5E%7B2%7D-2x-24%3D0%5C%5CD%20%3D%20%28-2%29%5E%7B2%7D-5%5Ctimes1%5Ctimes%28-24%29%3D100%3D10%5E%7B2%7D%5C%5Cx_%7B1%2C2%7D%3D%5Cfrac%7B2%5Cpm10%7D%7B2%7D%5C%5Cx_%7B1%7D%20%3D%206%5C%5Cx_%7B2%7D%20%3D%20-4)
Проверив корни уравнения, осталось только два верных: 0.2 и 6
Тогда их сумма 6.2