Помогите пожалуйста С б даю 20 баллов
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(√(2x+6))²=(1-x)²
2x+6=1 - 2x+x²
x²-4x-5=0
D/4=2²+5=9 ( ±3²)
х1=2+3=5
х2=2-3= -1
![\sqrt[3]{8*0.125} =\sqrt[3]{2^{3}*0.5^{3}} =2*0.5=1](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B8%2A0.125%7D%20%3D%5Csqrt%5B3%5D%7B2%5E%7B3%7D%2A0.5%5E%7B3%7D%7D%20%3D2%2A0.5%3D1 "\sqrt[3]{8*0.125} =\sqrt[3]{2^{3}*0.5^{3}} =2*0.5=1")
![\sqrt[3]{}\frac{24}{375} =\frac{\sqrt[3]{3*8} } {\sqrt[3]{125*3}} = \frac{\sqrt[3]{2^{3}*3}} { \sqrt[3]{5^{3}*3} }=\frac{2\sqrt[3]{3}} {5\sqrt[3]{3} }= \frac{2}{5} =0.4](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%7D%5Cfrac%7B24%7D%7B375%7D%20%20%3D%5Cfrac%7B%5Csqrt%5B3%5D%7B3%2A8%7D%20%7D%20%7B%5Csqrt%5B3%5D%7B125%2A3%7D%7D%20%3D%20%5Cfrac%7B%5Csqrt%5B3%5D%7B2%5E%7B3%7D%2A3%7D%7D%20%7B%20%5Csqrt%5B3%5D%7B5%5E%7B3%7D%2A3%7D%20%7D%3D%5Cfrac%7B2%5Csqrt%5B3%5D%7B3%7D%7D%20%7B5%5Csqrt%5B3%5D%7B3%7D%20%7D%3D%20%5Cfrac%7B2%7D%7B5%7D%20%3D0.4 "\sqrt[3]{}\frac{24}{375} =\frac{\sqrt[3]{3*8} } {\sqrt[3]{125*3}} = \frac{\sqrt[3]{2^{3}*3}} { \sqrt[3]{5^{3}*3} }=\frac{2\sqrt[3]{3}} {5\sqrt[3]{3} }= \frac{2}{5} =0.4")
![\frac{11^{1.5}}{11^{0.3}} =11^{1.5-0.3}=11^{1.2}=11\sqrt[5]{11}](https://tex.z-dn.net/?f=%5Cfrac%7B11%5E%7B1.5%7D%7D%7B11%5E%7B0.3%7D%7D%20%3D11%5E%7B1.5-0.3%7D%3D11%5E%7B1.2%7D%3D11%5Csqrt%5B5%5D%7B11%7D "\frac{11^{1.5}}{11^{0.3}} =11^{1.5-0.3}=11^{1.2}=11\sqrt[5]{11}")
