Question

Me ajudem por favor

Answer 1

$\sqrt{a}=8,6 \ \ \sqrt[4]{b}=1,5 \ \ \sqrt[8]{c} =4,3\\ a=(8,6)^2 \ \ b=(1,5)^4 \ \ c=(4,3)^8\\\\ x= \sqrt[8]{ \frac{a^4*b^2}{c} } \\ x= \sqrt[8]{ \frac{((8,6)^2)^4*((1,5)^4)^2}{(4,3)^8} }\\\\ x= \sqrt[8]{ \frac{(8,6)^8*(1,5)^8}{(4,3)^8} }\\ x= \sqrt[8]{ [\frac{(8,6)*(1,5)}{4,3}]^8 }\\\\ x=\frac{(8,6)*(1,5)}{4,3}\\ x=2*1,5\\ x=3$