Question

x la puterea 2 ÷ 2 la a 2= 5 la 4

Answer 1

$x^{2} : 2^{2} = 5^{4} \Rightarrow x^{2} = 5^{4}\cdot 2^{2} \Rightarrow x^{2} =5^{2^{2} }\cdot 2^{2} \Rightarrow x^{2} = (5^{2}\cdot 2)^{2} \Rightarrow \\ \Rightarrow x=\pm5^{2}\cdot 2 \Rightarrow x =\pm25\cdot 2 \Rightarrow x=\pm50$