Question

daca 4radical din x =9 atunci x=?

Answer 1

4√x = 9
√x = 9/4
x = 9/4 ^2
x = 2,25 ^2
x = 5.0625

Answer 2

4radical din x =9

$\it 4\sqrt x = 9 \Rightarrow \sqrt x = \dfrac{9}{4} \Rightarrow (\sqrt x)^2 = \left(\dfrac{9}{4}\right)^2 \Rightarrow x = \dfrac{81}{16} \Rightarrow x = 5,0625$